Fairly new to owning fish and noticed while I was walking past my tank tonight I noticed the tail end of a cherry shrimp lying on the floor of my tank. Pretty sure it wasn’t there less than a few hours before. Not sure what could have happened to it. We have 6 cherry barbs, one of which seems to chase the others lately. I had 6 cherry shrimp and a few yellow rabbit snails in there. As of late have only been able to count 5 shrimp and tonight coming across the remains of on. Is the cherry barb the problem?