So Im sitting at my tank checking it out. When I notice my pumpkinseed acting funny. He's flaring his gills a little at the other bluegills and his colors get more vibrant and so does which ever fish he gets next to. Then they half way turn sideways for maybe a sec or 2 but thats it. So Im assuming that their trying to mate its just they arent compatible by size yet. Anyone know for certain if this is mating ritual or just a territorial thing. I have been adding plants to my tank so the landscape changes every few weeks.