I have a 65 g FOWLR . I purchased 6 hermit crabs on sunday, I only see 3 now, not sure if the other ones died or just under rocks and such. Anyway, I was wondering how many I can have this soon (1 month old tank). I love watching these little guys (dwarf blue legged). Also, will these small hermits bother a Cleaner Shrimp at all ?