Ok, I have had these 2 opaline gouramis for about 6 months now and they have been doing great. They chase each other around but it does not seem like they are fighting just playing. Recently I have seen that one of them is missing a few scales right on its gill and i instantly noticed it was kind of red... I know it was'nt the other gouramis because this one is actually bigger than the other one so he usually chases the other. I dont know what this could be,( I figured the injury came from scratching on a rock while they chase each other around) I am afraid it might be some kind of bacterial infection because thats what I figure through reading more than a few posts. This is the biggest fish in my tank and the next size down is the other gouramis. I have a betta, 2 small angels, 2 small kissing gouramis and a farlowella... what I noticed the past day or so is that the injured one actually lets the kissing gouramis "kiss" him on the side, it seems like its cleaning it. The gouramis does not seem sick or anything, still eats like a pig, does not seem like anything has changed. PLEASE HELP!!!! I posted a picture but its not the best quality since the fish hate my camera