Dawny11 said:Well so far so good....Or so I thought. I noticed a little red legged hermit that had squeezed its way between two snails that where stuck together and I assumed the crab was cleaning their shells....I guess not! because now, I have two empty snail shells! My guess is the hermit ate the two snails? Is that possible?? The size of the hermit compared to just one of the snails would be a variable feast! I can't believe it would have eaten two of them, if any? Any ideas?
Hermits will absolutely eat snails if they don't have enough food. They will also kill snails, eat them and take their shells if there are no shells or them to move into when they molt and get too big for their current shell.
Usually people add fish slowly. It's not advisable to put all the stock you want in at once. If they weren't killed, there might have been another mini cycle because the bacteria might have not been able to handle the ammonia all at once. (Fish waste->ammonia, more fish, more waste, more ammonia). Next time you might want to buy a clownfish or a small group of chromis...something on the inexpensive side, (and quite hardy) so if it does die, it shouldn't be a huge investment. Then later (few weeks-months, depends) you can add the next fish and so on. Patience is key! And without it, problems will surely arise. I don't really know what that "monster" possibly eating your fish could be...maybe a mantis shrimp? Best of luck. 
