How do I know if my pleco is healthy?

You know your pleco is happy if it exhibits the following signs of a happy and healthy pleco:

  • Healthy appetite
  • Nice full or rounded belly, its abdomen should never look hollow
  • Clear, normal eyes, not cloudy or bulging
  • No injuries or abnormal growths
  • No white spots or blemishes

Additionally, you should remember that plecos are nocturnal, bottom-dwelling fish, so your pleco might stay in hiding and avoid moving too much during the day. These are normal behaviors for plecos and shouldn’t be a cause of concern.