Inverts that will never be put in my tank again

[Flash]

every once and a while one of my bigger hermits will take out a smaller one... my snails are all fine, i have 5 mexican turbos, they do a great job...I had an emerald, every time a smaller crab, snail or fish swam by he got all ****y and tried to grab at them... well one day I watched my female Perc take him out! and that was the last emerald that i will put in my tank!