I picked up 6 long finned zebras last night and noticed tonite that 2 of them seem like they have bite marks in them. They seem to nip/play w/ eachother alot but could they be actually getting that agressive w/ eachother. I don't think its the parrot cause he doesnt pay any attention to them and hes always on the bottom half and i don't think he could catch them. The severum is still pretty small and ignores everyone. I moved the dwarf gourami into a ten gallon in my daughters room before i put them in cause he was actually causing trouble and nipping at everybody so it wasn't him. I didnt notice these marks when i put them in but they move so much its hard to tell? but they were in a tank w/ all zebras. Also i just noticed 1 looks diiferent like it may be a lepoard has dots not lines and hes the one that looks like he got it the worst would that matter would he not get along as well w/ the others? it seems like he schools w/ them no problems?