I've been noticing some circular white marks on my Yellow tail Barracuda and Cory's withint he past few weeks... My first thought was that they have been running into the bogwood, rocks, etc. However today I actually saw my 3" Clown Loach launch towards my Needlenose "Gar" and Cuda! Right now I have a 75g with one Yellow tail cuda, one Needlenose Gar, 2 Cory cats, 3 Clown Loaches, and one Gian Pleco. I've never had a problem with any of the other fish, just the Loaches :/ Have any of you ever experienced this with your Clowns? Any pointers on getting them to stop? I was thinking of making them another little cave to try and keep them away fromt he rest, but the Corys and Pleco just go wandering in everywhere... None of the fish are above 5" yet.