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Profile photo of Stacy

by Stacy

Should we change our minds about bathing our hermit crabs?

February 21, 2013 in General

By Bill (Kazabee, Inc.)

The purpose of this post/poll is twofold; one is to present information that is known about the natural biology of hermit crabs (Coenobita spp.), and how it relates to the effects of regular bathing. The second purpose is to find out if such information will cause some crabbers to change their mind regarding the practice of actively bathing pet hermit crabs. This is a repost of my original. A minor change in the wording of the poll question had to be made and this was the only way to edit it. I apologize for the inconvenience.

Many veteran and novice crabbers alike engage in the practice of actively bathing their hermit crabs frequently, some as often as once or twice per week. Most adopt this practice because it is printed on care sheets (like the one FMR puts out), they hear about it from other crabbers in online forums, or read it in a hermit crab care book. The idea behind bathing is that hermit crabs as a genus were once aquatic animals that have adapted to terrestrial life. The thought is that regular bathing has the benefits of helping them keep their gills moist, keeping the crabs well hydrated and cleaning out their shells of dirt, debris and feces.

Many have also adopted the practice of adding Stress Coat to the bath water for the moisturizing benefits of the aloe contained in it and the thought that it will help condition their exoskeleton and replace some of the natural oils and slime coating they may have in the wild. This can be easily accomplished by offering an appropriate and varied diet, including some whole fish (like sardines in spring water or other fish with skin intact, just be leary of fish known to have higher mercury levels, or fish that has been processed or cooked). Commercial diets like FMR also provide for essential oils. Vertebrate feces, such as that from a tortoise, can also be beneficial in providing additional nutriment in the form of undigested plan matter, animal proteins sloughed off from the GI tract and beneficial bacteria found in their digestive tract. One caveat here is to use only feces from a healthy animal that has been screened for parasites; though the gastric mill of the crabs likely provides adequate defense to most common parasites. (Adapted from Greenway 2003, pg. 18 under “Feeding and Diet”). Another use for Stress Coat is as an aid in rehydrating/rehabilitating injured and/or dehydrated specimens, which I will comment on later.

The information presented here is adapted from two main sources, the book “Biology of the Land Crabs”, edited by Burggren and McMahon, and the research paper, “Terrestrial Adaptations in the Anomurans (Crustacea: Decapoda)”. Here is a link to this article:


What is known from these sources, which are based upon scientific research, is that hermit crabs maintain their shell water at salt levels that are isosmotic (equal to) salt levels in their bodies. Hermit crabs are separable by species with regard to their preferred salt levels, with each species having its own preferred range of salt levels. Beach dwelling species like C. perlatus (the Strawberry Hermit Crab) tend to maintain salt levels that are actually of a higher concentration than seawater, while species that live more inland like C. clypeatus usually do not have access to seawater, and therefore tend to have salt levels well below the concentration of seawater. (adapted from Greenaway, 2003)

It has been well documented that the more inland species prefer dilute water unless they are depleted of salt. (Greenaway, 2003 as referenced from de Wilde, 1973). This would explain reports by crabbers who actively bathe their hermit crabs that even their C. clypeatus (considered a “more inland” species) have been observed or noted to have “drained” their salt water dish on a regular basis. Certainly crabs will increase water intake prior to molting, but for C. clypeatus to frequently drain the salt water dish is likely an indication of salt depletion due to frequent bathing in water hyposmotic (lower in comparison) to their blood and body tissues. This information is a very brief summary of the information found in the article linked above starting on page 16, column 1 with the heading “Salt and Water Balance”.

Now, let me discuss the practice of actively bathing hermit crabs and the effect it can have on their salt regulation. The procedure most use when they bath their crabs is to submerge them, some placing them upside down so that when they come out of their shell to turn over, the bath water flows into their shell and rinses out dirt and feces. Others wait until the crabs come out to walk around and then move them around under the water to rinse out the shell. In these processes, their shell water is swapped out for the bath water (for some, chemically treated Stress Coat water). The net effect is that their shell water which was once isosmotic (equal) with their blood concentration of salt is now hyposmotic to the concentration of salt in their blood (salt level in their shell water lower than that in their blood and body tissues). Through osmosis, a higher concentration will always move toward a compartment with a lower concentration; as a result, the concentration of salts in their blood and body tissues is lowered as some salt is lost through osmosis to the lower concentrated shell water. This presents a problem, potentially dropping their body salt level below the range that is preferred for each species, especially in a beach dwelling species like C. perlatus, which tends to be “saltier” than others for lack of a better term. It has been noted that the renal organs of hermit crabs (analogous to our kidneys) possibly plays a large role in their osmoregulation through exchange of ions:


“In aquatic species adjustments to ion content are made principally by salt transport across the gills, and the renal organ makes only a minor contribution. In terrestrial animals the gut and renal organs become the main sites of ionic regulation.

Source: Biology of the Land Crabs, Burggren and McMahon, pg 213.

Since we do not know the long term effects on their body systems and organs of the wide swings in salinity levels that can occur with frequent bathing, perhaps we should make adjustments to the captive care of these animals, with the goal being minimizing the overall disturbance of their salinity levels.

Certainly, the crabs can adjust their salinity levels by selective drinking/bathing in their habitat, and through the promotion of evaporation (Greenaway, 2003), but again we don’t know the long term effects of wide swings in salinity levels on their osmoregulatory systems overall and specifically their gut and renal organs. Furthermore, one of the world’s leading experts in herpetology and captive animal husbandry, Philippe De Vosjoli recommends against actively bathing hermit crabs for much the same reason in his book, “The Care of Land Hermit Crabs”.

The next issue to be dealt with is in regard to adding Stress Coat to the bath water. Recently, a fellow crabber contacted the manufacturer of Stress Coat to ask about the safety of adding it to their drinking water. The answer was that it has not been studied and cannot be recommended. The crabber noted that many crabbers also add it to their bathing water. Again, the answer was this has not been studied and cannot be recommended by the manufacturer. One point that many Stress Coat bathers don’t often realize is that their crabs are likely exposed far longer than they think to the chemicals in Stress Coat.

When their shell water is swapped out for Stress Coat treated water through frequent bathing, the chemicals are now in their shell water, and likely remain there for days after bathing, if not straight through until the next bath all together. Even if the crabs add to their shell water, all they are doing is diluting the chemicals. If they are able to partially or fully submerge themselves in the drinking water (salt and fresh) in their habitat, then some of the chemicals no doubt wind up in their drinking water. Even changing water every day as most crabbers do, you are likely to wind up with some chemicals in the drinking water on a day to day basis in a set up with multiple crabs, as each will visit the water dish on their own schedule. Chances are somebody with Stress Coat water in their shell will visit the water dish on a daily basis.

With these thoughts in mind many crabbers, including myself, have opted for a more “passive” method of bathing our hermit crabs. That is, providing basins of salt and fresh water large and deep enough to allow the crabs to at least partially, if not fully submerge themselves in them. One issue here is that you need to provide adequate climbing surfaces (i.e. rocks, coral, etc.) in the basins to ensure that even the smallest crabs can climb out from the bottom. Some crabbers, including myself, have added a filter to their basins in order to cut down on daily maintenance.

There are several filters that can work for this application, but you need a water depth of about 3″ to accommodate them. Penn Plax has a Small World filter that operates off of an air pump, and they also have a submersible filter called the Sand Shark. I have tried both and prefer the Sand Shark. It is only a little more than the Small World once you factor in the air pump you need for the Small World, is much quieter, and circulates water better, creating a sort of wave motion effect. Other brands that offer similar filters are Fluval, Duetto and ZooMed. The most common application for these is in semi aquatic terrariums for turtles, frogs and other semi aquatic creatures, and most have an adjustable flow rate, making it possible to use them in relatively small basins. To find appropriate sized basins, measure your habitat and come up with a reasonable size that will fit and allow for at least partial, if not full submersion. Then visit your local pet store and look for that size dish, or visit the tupperware isle at a local department store and measure the dishes until you find some of appropriate size. One point to note if you switch to a filtered basin, is that you will lose some water through evaporation and will likely have to replace some every few days. Take care to monitor the salinity level of the water to keep it within an acceptable range for seawter (generally considered 1.020-1.024 specific gravity). I usually add fresh or brackish water to replace evaporative losses so as not to increase the overall salinity. You can monitor this with a simple hydrometer purchased at a pet store that handles salt water fish at a cost of $10-12.

Maintenance can be an issue if you cannot filter; however, since most crabbers change their water daily, it is not a big deal to change water in a larger dish every day if you have to go up in size. One problem to overcome is how does one recoup lost land surface area in their crabitat if they have to add larger basins to accommodate passive bathing? My answer was to landscape the terrarium so that there is a high level of substrate at one end, molded over makeshift caves and leveled off. What you wind up with is a natural second level, and more surface area by way of the caves buried underneath. I believe this can be accomplished with the smallest of crabitats and will be happy to assist anyone with suggetions on how to do this in their size tank. Here is a link to some photos that will show some ideas for caves. Note the photo near the bottom of the second link showing my C. perlatus bathing himself in a filtered saltwater basin:



Close up of our new ocean basin, complete with filter
Ocean Basin by Kazabee, Inc.
Everyone checking out their new digs, L-R, high to low:  Conan, Davey, Charles (up high on the coral), Becca (under Charles), Berry (food dish) and Chelsea on the right hand side of coral):
Full View of Crabitat by Kazabee, Inc.
Side shot along back of tank showing new large cave installed under second level:
Second side shot showing full length up to second level:
Side Caves 2 by Kazabee, Inc.
One of our small Ecuadorians, S’mores, taking a swim. After we redid the tank, he went under water, along the bottom of the basin , then out to the other end of the tank and back into the basin again about 4 times. He then did a full lap around the outside of the basin– he was really digging it!
S'mores swimming by Kazabee, Inc.
You can see three caves in this photo, the two PVC caves we had before, and now the new extra large Haba-Hut log turned cave in the center under the driftwood arch. You can barely see the top of the third cave just above the end of the left hand arm of the coral tree:
Side Action by Kazabee, Inc.
A photo of my C. perlatus enjoying his own personal crab jacuzzi! Note he is submerged up to his eyeballs! He does this quite often, sometimes spending several minutes to well over an hour partially submerged. He tends to hang out on the side of the basin where the filter output is, creating a wave motion effect:
Berry Bath by Kazabee, Inc.

As a matter of fairness, active bathing may be acceptable if one cannot provide for passive bathing for the crabs in their habitat. Active bathing would be preferable to not bathing at all, especially if the crabs have small, shallow water dishes, or in some cases a small shell dish with only a moist sponge (the latter of which I certainly do not advocate), and/or if the humidity levels are low or borderline in the crabber’s home and/or the crab’s habitat. If active bathing is deemed necessary, care should be taken to minimize the overall disturbance the crabs experience. This could mean modifying your practices by bathing them less frequently, cutting down on the frequency of Stress Coat use or limiting it to use for injured specimens or those in need of rehabilitation/rehydration, and lastly adjusting the salinity of the bath water to try to more closely match what is likely in the shell of each species; for example, bathing C. perlatus in full strength salt water as opposed to fresh water. There is a chart in the Greenaway article referenced above that shows the relative salinity levels for each species (page 17, table 3).

In closing, every crabber who actively bathes their crabs should ask themselves the following questions:

How long does the Stress Coat treated water stay in my crabs’ shells after they are bathed in it?
Are they exposed almost every day to Stress Coat water and the chemicals in it as a result of my bathing because it is left in their shell water between baths? We know crabs ingest their shell water from time to time, they will also absorb chemicals through their skin. Also, if they readjust by submerging in their drinking water, the Stress Coat chemicals are likely to wind up there as well.

How much and how often do they actually drink when left to their own devices? Are they getting a bulk of their weekly drinking water intake done at bathing time, causing them to ingest Stress Coat and its chemicals on a regular basis?

What is the potential long term effect of wide swings in salinity levels caused by once or twice weekly bathing? What is the long term effect on the bodies of hermit crabs of constantly having to readjust their levels– not minor adjustments that occur through their own natural bathing and drinking behaviors, but major adjustments necessitated by shell water constantly being hyposmotic to blood levels due to frequent bathing?

Give yourself honest answers to these questions. We have the responsibility to care for these animals to the best of our ability. This should include simulating their natural environment and giving them the facilities they need to properly care for their own needs in as natural a manner as possible.

Profile photo of Stacy

by Stacy

FAQ How can I bath my hermit crab?

October 16, 2012 in FAQ

ladybug15057 answered:

If one has the room to offer a pond deep enough that their hermies can completely submerge themselves into, one does not have to bath their hermies.

Even though I do offer the deep ponds for our hermies to submerge in, I do still bath our hermies. This is a post I had done on Hermies Group from November 2005, so it has been over 2 years now since I have used stresscoat in the bath water: (but I did use stresscoat for almost 4 years for bathing)


I have went back to an older post I had done about the way we bath our hermies. Reason being, even though we do still bath our hermies,
it has been almost a year since I have used stresscoat in their bath water and they have been doing very well without it. So when reading this bathing method, please do remember, I no longer use stresscoat.

When we bath our hermies we use almost 1/2 U.S. gallon o> water, and I put 2-3 drops of Stresscoat to the bath water. I do preheat the bath water to take the major chill off of it. (till it is ‘tepid’, not warm, but no major chill to it) I fill the bath bowl until it is deep enough to completely cover the largest hermie of that tank so their antenna’s and eyestalks all get the benefit of the stress coat. (One should never add stress coat to water that has already had a dechlorinator added to it. This is a double dose of a dechlorinator and can be harmful to the hermies.)

We very gently place the hermies in upside down so when they right themselves back up, the water flushes all the gook out of their shells. We leave them in the water scooting about for no more than 1 minute. (no need to do it any longer, good chance they could become stressed over it) We also do this prior to reintroducing our molters to their tank mates again.

There are some crabber’s who do not bath their hermies, but they provide a deep enough water source within their crabitat’s where the hermie can completely submerge themselves and soak in the water, fill their shells, or bath themselves. I will mention that those
who do not bath their hermies will give their molters a dip in the deep water source in their main tank so that molter will smell like
the others, and to help wash off the molt smell which can cause the tank mates to be aggressive to the molter.

However when we do bring the hermies home they are to receive a bath. This helps with a couple of things. Some pet stores will bath their hermies upon arrival with tetracycline water. This is suppose to kill any bacteria’s that the hermies may have, and to rehydrate them. The tetracycline is harmful to the hermies and can actually create more harm to them if not flushed out of their shells. So a bath when they get to our homes does flush this out of their shells. It also helps us to rehydrate the hermies as well, along with checking to see if they have any pests or any other problems/illnesses.

Daethian writes:

Should I bathe my hermit crab?

Well the answer to that depends on who you ask! This could be one of the most hotly debated topics in the crabbing community. I’m not going to give you a answer, but I will try to offer both sides of the argument and you can decide for yourself.

Camp One: Actively bathing their crabs by the flip and dunk method. This entails preparing a bowl of stress coat treated water and placing the crab upside down under water. The crab will, hopefully, pop out and right itself. Thus flushing out the shell of any matter. This is done on a weekly basis by most people who employ this method. The crab should NOT completely abandon its shell during its bath. Leaving its shell is a sign of stress. If one of your crabs exhibits this behaviour, I strongly suggest you discontinue bathing it in this manner.

Camp Two: Actively bathing their crabs by placing them in a shallow dish of water to wade around. Some use stress coat treated water.

Camp Three: Inactively bath their crabs by not really bathing them at all. Offering at all times shallow pools of fresh water and salt water so the crabs can wade in and bathe themselves when they choose to. No stress coat should be added to drinking water.

Pros of Camp One’s method:

* The crab’s shell is kept clean of any fecal matter
* The crab’s exoskeleton is kept supple by the stress coat
* The crab’s seem to enjoy the bath
* The crab’s are move active after a bath
* A bath can help soften the exo prior to a molt
* Requires no additional tank space

Con’s of Camp One’s method:

Hermit Crab Submerged

Hermit Crab Submerged

* The flip and dunk is not natural and causes great stress in the crab
* There is no evidence that stress coat is beneficial (or harmful for that matter)
* The flurry of activity after a bath is really a sign of a panicked and stressed crab
* Bathing too close to a molt can be hazardous
* Disrupts the delicate balance maintained in the shell water by flushing it all out and replacing with unbalanced water

Pro’s of Camp Two’s method:

Hermit Crab Wading

Hermit Crab Wading

* All the same as Camp One, minus the stress of the flip and dunk

Con’s of Camp Two’s method:

* All the same as Camp One, being forced to wade in the water is still stressful

Pro’s of Camp Three’s method:

* This is the most natural approach to bathing
* The crab can clean its shell as needed
* The crab can maintain the balance of shell water

Con’s of Camp Three’s method:

* No exposure to stress coat (again there is no current evidence about the harm or help of using stress coat

My personal opinion is that you should not forcibly bathe your hermit crabs or use stress coat. There is no evidence to prove that stresscoat is even beneficial.If you have purchased new crabs, I suggest you give them ONE bath to make sure they are mite free before placing them in your main tank.

Special credit and thanks to Kerie Campbell for the photo of her Perlatus. This photo is and remains her property.

Originally posted on All Things Crabby the Hermit Crab Care Blog

Profile photo of Stacy

by Stacy

Bathing your Land hermit Crab

September 27, 2012 in Caresheets

Originally written by Vanessa Pike-Russell

It is important that your land hermit crabs are able to bathe themselves. Bathing allows your hermit crab to re-hydrate, flush out the feces and wash off the sticky juices and food stuffs which are present when you offer fresh fruit, seafood and commercial diets.

Active or Passive Bathing?

Passive bathing is when you provide the means for your hermit crabs to bathe, and allow them to bathe when they want to. Many passive bathing method crabbers will provide a deep fresh and brackish water ponds that their hermit crabs can wade through and bathe themselves in a “hands off’ method.

Active bathing is when you provide the means for your hermit crabs to bathe and actively encourage them to bathe. If you do not have a large crabitat and the room to put fresh and brackish (ocean water) water ponds or pools in your crabitat, you may wish to use a clean plastic container or tub and bathe them out of the tank.

Baths should be performed under supervision, and there are some safety measures you need to follow. It is important that the water you use is tepid or lukewarm. Cold or warm water can stress your land hermit crab. Land Hermit Crabs can drown if submerged in water for an extended time (fishermen say around an hour), but they have been observed bathe themselves in shallow pools when in the wild.

Hermit Crabs urinate through their antennae, so any water spills during handling is shell water. Hermit Crabs have an anus located on the end of their abdomen, and have been observed to flick any wastes (droppings) out of their shells. These feces are often brown colored and look like small sausage or ball shapes which consist mainly of sand and undigested foodstuffs.

When bathing actively it is recommended (but not essential) that you add a drop of Stress Coat with Aloe in the bathing water. It is a water conditioner which will remove Chlorine, Chloramines and heavy metals as well as creating a ‘slime coating’. to protect the delicate gill area. Stresscoat should not be used in water that has already had a dechlorinator added to it. The Aloe Vera will help them re-hydrate and condition their exoskeleton, “Aloe Vera, Nature’s First Aid Plant”. To learn more about Stress Coat with Aloe, click here.

Methods of Bathing

Submersion (active)

Sometimes it helps to gently tilt the hermit crab upside down, by the time they upright themselves air-bubbles lift from inside the shell, along with a gentle movement in the water to dislodge any gunk or mites which should float and be scooped out. I do not use the submersion method unless I believe there is a reason, such as decomposing foodstuffs, feces or mites. It can be a little stressful for some land hermit crabs, so you might prefer to follow one of the more gentler methods of bathing.

Leg Kicking (active)

Lower the hermit crabs into a ‘bath’ container such as a clean plastic tub or commercial product such as the bowls pictured above. The hermit crab then wades through the water and after a few laps they are taken out. This method should be done under close supervision, especially if the container used as a ‘bath’ does not include a section for the hermit crabs to be able to climb out onto ‘dry land’ after making their way around for a few laps for some solid ‘leg kicking’. I recommend this method

Drying Off (active)

If you choose to bathe, it helps to set them down into a drying-off tub or container lined with fresh substrate, clean towel or other substance for traction and allow the hermit crabs to walk about and drip dry. If you placed them directly within the crabitat, you would find that it would soon be water-logged from all the excess water from within the seashells of the freshly-bathed hermit crabs. The substrate should never be wet, only damp. Wet substrate with foodstuffs can create a breeding ground for bacteria and fungus.

Walk through (passive)

If you do not feel comfortable with either the submersion or wade-through methods of bathing, an alternative method is to provide your crab with the opportunity to walk through their ocean water pool (or other container) filled with chlorine-free water. Allow them to wander about naturally to bathe themselves.

The water dish must be one that they can easily get in and out of, and perhaps has items such as marbles, sea glass, pebbles, piece of cuttlebone or other item that will aid in their safe departure from the water, lest they drown. If you are using the walk through method within your tank and you choose to add Stress Coat with Aloe to the bathing water, make sure to replace any Stress Coat with Aloe-treated water with fresh water after a few hours.

Too Much of a Good Thing

Some people reason that if Stress Coat with Aloe is beneficial to their hermit crabs, why not put it in the water all of the time? Think of Stress Coat with Aloe as a weekly moisturizing treatment. Just as we apply moisturizer to skin that is dry from the effects of salt water from a day at the beach, Stress Coat with Aloe helps to repair the damage to tissues as ‘natures bandage’ as well as create a layer that helps to protect skin from drying out. We do not bathe in moisturizer, nor do we drink it*. Stress Coat with Aloe is not meant for their every day drinking water (fresh is best) it is important to replace with fresh water for the remainder of the day.

Bathing after purchase

If it is the first bath of a hermit crab fresh from a pet store or webstore then you will need to increase the depth of water so that you can do your test for mites at the same time. Always use lukewarm water, de-chlorinated and a drop or two of Stress Coat with Aloe Vera, such as made by Aquarium Pharmaceuticals, although many brands have similar properties. When you think of the conditions the hermit crabs had been in, coupled with dehydration on the trip home, it is common sense to give your hermit crabs a bath on their arrival. You can be sure that after a long, dry journey I would want to go for a nice dip and rehydrate too!

Based on the original article written and Copyrighted by Vanessa Pike-Russell

Want another crabber’s approach to bathing?

Should we change our minds about bathing Hermit Crabs?

Pros and Cons of Bathing by All Things Crabby

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by Stacy

Medicinal Bath for treating bacterial infections, shell rot and black spots.

September 25, 2012 in Caresheets

This recipe can be modified, made stronger for use with very sick crabs, although this strength is fine for more minor cases!

General wash for injured crabs:
1 Tbsp. Marshmallow root shaved
1 Tbsp. myrrh powder
1 Tbsp. calendula (marigold)
1 Tbsp. whole chamomile flowers (not powdered)

First, you’ll need to make a decoction. Take one quart of water, and heat it
over the stove to near boiling. Add one tablespoon marshmallow root, and one
tablespoon myrrh. Cover, and simmer for thirty minutes. Remove from heat.
Add one tablespoon calendula flowers (marigold) and one tablespoon whole
chamomile flowers. Cover immediately again. Let sit until cool, then strain
herbs out and refrigerate. It will last a max of 48 hours. The herbs are all
safe, they can even be fed to the crabs. I routinely feed calendula and
chamomile to mine.

When bathing the crabs, bathe the affected parts only. I don’t see any
need to get the stuff on the gills, unless there is an infection of the
abdomen. The reason I say this, the marshmallow root makes a slime coat,
which is sort of thick, and is not beneficial in the shell unless you’re
fighting an infection in that area.
These are some of the general benefits of these herbs:[/b]

So marshmallow root draws out infections, draws out splinters, and makes a
thick slime coat layer that helps prevent infection and aids in healing.

Myrrh powder (like what was given to Baby Jesus), is a powerful
anti-bacterial, yet unlike antibiotics, is completely safe for crustaceans.

Calendula flowers (marigold), gently stimulates the immune system, is a mild anti-bacterial and anti-fungal, and cuts down on healing time.

Chamomile flowers, reduces inflammation, helps to speed healing, and reduces
swelling when it is present.

A few words of caution: do not use powdered herbs; you really need to find
the bulk medicinal herbs, because too many properties evaporate when the
herbs are crushed. If you drink chamomile tea, and do not find it that
relaxing, you should try a cup made from the whole flowers. There is a
noticeable difference.

And second, all the properties of chamomile (the essential oils) evaporate
with the steam. That’s why, when cooking herbs that have any essential oils,
you must trap all the steam and let it cool, so the medicinal contents will
remain in the formula.


Specific Wash for Bacterial Infection (including shell rot if caught in early stage):

[i]Note: my Vet said to put crab in clean substrate (preferably sand) and maintain humidity at exactly 70% (apparently lower humidity retards the metabolic rate of the bacteria, and this is the lowest a crab can tolerate while being treated) and more light. *this is a case for separate isolation![/i]

2 cups dechlorinated water
1 Tbsp. myrrh powder
2-3 Tbsp. calendula (marigold)
1 Tbsp. whole chamomile flowers (not powdered)

This concoction should be steeped after the water is boiled. Let it sit for about 20 minutes, strain out petals. Wash should be applied 2 times a day for 3 days, let the crab sit in it as there may be lesions on his shield and abdomen. It will benefit him if he retains it as shell water. After the first few days if you notice more lesions forming or see more discolored depressions in his chitin, you may not be able to stop the progression of the disease. If you do notice that there is no more formations, change out the substrate for new and watch him in ISO for at least another week. You can repeat the process again if you see reformation occurring. I think it would be up to you if you want to continue, but remember to keep this crab separate until you are sure that he has no active growth of the bacteria on him. With my indo BOB, he remained in a 2.5gal ISO until he molted.

Here are his pictures:

Bob came up from his molt like this. This spot was suspected shell rot. The deformation of the claw is from an unidentified toxic substance, or even from the bacteria being present when he molted the first time.












This was after his molt and after the bath treatment. I think it contributed to him molting again so soon, and while his claw still is undercut, there was no spot or depression in his chitin.












Sorry for the poor quality of the pictures, I lost the originals when I had a hard drive crash.

Photos from Daethian:

The main recipe was given to Daethian via email from Gert Snicklegrove. The best of our knowledge she is the creator of this recipe along with Summer Michaelson.

The second portion is an adaptation created by Sue Latell of Coenobita Research after speaking with her vet.

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