so one by one, my shrimp have been disappearing, and i honestly couldn't figure out why. and now i think i do. i had a few unwanted mini snails and my lfs told me assassin snails would be the answer, well they couldn't be more wrong. in less then 2 weeks, 15 cherry shrimp are all gone and this is the reason. i couldn't be more bummed... guess i gotta toss this killer beast and buy more shrimp.