Hello; let me explain how to tell if a fish is happy. First for those with years of experience with fishkeeping it should already be appearent to you by the little smiles on thier tiny fish lips. But lets look at the other signs. First they swim near the front of the tank and wave hi with thier fins. Second they are often seen dining and dancing. Third they eat and play and live healthy and just look like their having a ball. Hope this helps, and party on to all the little fishies
