goldenroot
New member
Ever since I got them about three months ago my clownfish have been opening and closing their mouths, but have seemed otherwise fine in that they seem to be eating normally and don't seem to be acting sick, so I have tried not to worry too much. In the past couple of days I have noticed that when they eat some food their gills will start to move(pump?) despite normally looking fine, although this may have been a long term thing that I just noticed. I feel like I should also note that the royal gramma in the tank is not doing any of this despite having been there for months already. Is this a problem, and if so what should I do?
Video of the clowns in question
Video of the clowns in question