There is such a wide variety of both hermit crabs and snails, are some more or less compatible with eachother than others? Would a smaller hermit crab like a scarlet still kill a snail like a large trochus who's shell wouldn't even be suitable for such a crab? I would like to hear peoples' opinions and if anyone has experience with certain species of crab being compatible or not with different snails. I personally used to have some halloween hermits which would eat astrea snails though I'm not sure if they killed them or if the snails had died previously.