Originally Posted by
Shrimpi
http:///forum/post/2873746
Dont keep more hermits and crabs in there than he can consume. Like, only stock the tank when you feed. Do not keep a supply of critters. It sounds like a good idea but it isnt, and this is why:
Mantis' are predators and they will attack by natural instinct (or boredom) even if they arent hungry. They will rip the critters out of thier shells, kill them, and then "bury them for later" in thier burrow. you wont even know this is happening until your water chemistry gets all whacked. Then... try to get into his burrow to get all the corpses out of the 'dug out' that are decaying and causing a nitrite/ammonia spike.
Only offer him food when it is feeding time. If you feed 2-3x a week, then throw a/two new snails in there at that time.
Good Luck, they are alot of fun!
Jess
There are only 5 hermit crabs in there right now. But I will be sure to let my hubby know that. He hasn't killed any yet. We put a PVC pipe in there for him but right now he chooses to dig out under the rocks. My friends Peacock uses the pipe and moves rocks at night to cover the openings.