it depends how big the hermit crab is or the fish bowl
It depends. If it is a land hermit crab "no", you do not want to put it in deep water to make it swim, it can actually just drown and die. I used to have a hermit crab and my friends babysitted it and when i got back the water bowl was spilt and my hermit crab was laying on its side, dead. If it is a water hermit crab, "yes". It needs water so it can swim, and just relax in it. it needs it!
I think that the fish rock might be a little too hard for your hermit crab because he needs soft enough sand to be able to molt and when they molt their skin is sensitive so the fish rock will probably make him uncomfortable.
if your hermit crab pinches you put it under cold water
It depends on the hermit crab but I would personally say just to be careful No the big one might hurt or bully the smaller crab.
Actually it doesn't take very long for a hermit crab to smell when it's dead. They will not smell if they just died. About 10-15 mins they will start to smell. You have to put the hermit crab up to your nose in order to smell the rotten fish smell.
hermit crabs should not be put with other animals and your hermit crab needs a better home. Glad i could help p.s 35cm wide tanks can hold 3 hermit crabs
OF COURSE NOT! Hermit crabs drowned in water , they can even drown in water that's not even an inch high , so i will sugest , if u wanna keep ur hermit crab that you don't put it in that , i have a hermit crab and a gold fish and they cant be in the same tank!
You need to keep food in their bowl and change daily. hermit crabs are scavengers so they eat fruit and veggies, so when you eat fruits or veggies take a little chunck off and put it in their bowl.
yes
down the toiliot
Yes, hermit crabs can drown. But it is still very important to have distilled water in the tank for your hermit crab to drink. Putting a natural sponge can help hermit crabs from drowning. Also do not put enough water in the bowl for it to drown. Hermit crabs also need SEA salt water for them to bathe in to get their exoskeleton stronger. Hermit crabs need distilled water because the clorine burs their modified (hardened) gills, the gills are not the kind fish have. Hermies gills need moisture in the air. so have the tank have 70 - 80% humidity.
You should let it mold. It is part of life for a Hermit crab.