Hey guys, I have a Snowflake eel in a new (2 months) tank. He was added around the same time as the three fish that live with him. (2x Zebra Damsels, 1x Royal Blue Damsel) I decided it was time to add a clean up crew for the left overs. I added 4x Turbo Snails and 4x Hermit Crabs, when I added them I'm the Snowflake came out of his cave and headbutted each of the new crew. I thought nothing of it, he is normally pretty curious. I woke up today and one of the Zebras and the Royal Blue are gone without a trace. I pulled apart the live rocks looking for any sign of them but no luck. I think maybe putting the crabs in triggered something wild in the Snowflake and he has become aggressive. He was very docile before and never bothered the fish. What should I do from here?