I just bought 2 peppermint shrimp and in about half an hour after I put them in my tank one of them was already half chewed up and the other is hiding at the moment. I had a cleaner shrimp before I got these two and every time it molted it's antennas would be half chewed off and this happened for months and I couldn't figure out why until he finally died, from stress I think. I have a feeling it's either the Bristle tail or the Six line, I'm not really sure which. This is everything I have in my 30 gallon right now.
2x Clown fish
1x Blue/green chromous
1x Six line wrasse
1x yellow clown goby
1x Bristletail filefish
1x Serpent sea star
2x Clown fish
1x Blue/green chromous
1x Six line wrasse
1x yellow clown goby
1x Bristletail filefish
1x Serpent sea star