Anonymous said: my hermit crabs will not change shells. one has a huge hole on the back of her shell, the other is way too small for her shell. like, she can barely get into it. I've given them shells, different types and sizes. is there any reasons why they won't change? or is there something I can do to encourage them to change?
The only thing you can really do is make sure the extra shells are clean. The best thing to do to attract crabs to a new shell is to rinse them in salt water (marine salt not table) so that it makes them think the shell was recently occupied by another crab. Sometimes crabs are stubborn though, so you can really only wait.
Anonymous said: when a hermit crab buries itself to molt, will you still hear it? like scratching noises and slight chirping?
Yeah, while they’re still digging. The scratching is usually them reaching the bottom of the tank. It’s totally normal.
Anonymous said: I checked my tank to change the good and I caught my biggest crab running away from the remains of a torn up 'Made in China' sticker that he tore off of the thermometer, and also some of the aquarium sealer paste that he chipped off from around the top rim of the tank. Should I be worried that he could have poisoned himself?
You should always remove things like stickers from anything before putting them in the tank. However, I don’t think there’s much to be concerned about. I’m assuming that by aquarium sealer, you mean the rubber sealant that’s found on the corners of most aquariums. Sometimes crabs will pull at this stuff, but to my knowledge they almost never eat it.
Should I be worried that Sarge (right) and Thor (left) seem to be different colours?
Nope! It’s totally normal.
caylastargirl said: Yea. I'm just leaving it be. I put the shell back. Bonnie molted already. She was the first to come up. Then when everyone else woke up she disappeared. I thought molly sue was up I guess it was weasel I kept seeing. You think bonnie found her ?
Maybe, maybe not. I have never had problems with molters being eaten, so I can’t say for sure. If you’re scared about that happening, give your crabs more meat - they’ll gladly go after that long before they’ll attack another crab. They’re pack animals, after all. I’d give it some more time before worrying.
caylastargirl said: I found an empty shell. Where I thought molly sue was. Its been there for a while. I know she could be naked buried or bonnie is slowly eating her in a cave that's why I have not seen her in a while eek. Ughh
How long has it been? If it’s been under 2 months, I wouldn’t go digging.
caylastargirl said: I know you said it was normal. But 2 of my hermits. Just molted and now I never see them when the other 3 are very active no bad smell so I assume they are alive. Should I poke around for them. Just to make sure. My tank is good no reason they die
Nope, leave ‘em be.
Anonymous said: I have a few questions. 1. how long should moulting signs continue before a hermit crab actually will moult? 2. when they're about to moult, do they seem more scared of things and do they usually hide in one spot? 3. how warm should substrate be? my tank is the perfect temperature but the coconut fibre is kind of cold. my hermit crab is lethargic, hiding in one spot, not eating, light in color, has a large fat pouch, and seems pretty scared of things. it's been like this for a week.
There’s no time frame on molting, really. They vary - you can never say for sure how long it’ll be. Your crab is exhibiting pretty classic pre-molt behavior. I would make sure your substrate is at the right consistency - they’ll probably dig down soon.
As for temperature, this is why I put my tank heaters as low down on the side of the tank as possible. It gives crabs a temperature range so they can kind of decide where they want to be when molting.
Anonymous said: One of my hermit crabs died today... Like really dead. (Complications in moulting) So my hermit crab is all alone. I'm moving in like a month-ish so I don't want to get another one until then. (Do you think this is a good idea) and how many can I keep in a 10gallon like if I have 1 medium on could I give him 2 small crabs? Or just one more? I was thinking of upgrading to a 20gallon next year or so.
It’s probably best to wait, and I’d say in a 10 gallon you shouldn’t do more than 4 crabs.
Anonymous said: so if a hermit crab is molting, they can dig down deeper during?
Not if they’ve already started molting, but often crabs will hang out for a bit underground before actually molting.