You can tell angelfish are happy if they exhibit the following signs of happy and healthy angelfish:
- Healthy appetite
- Active swimming
- Fins are flared out, not clamped
- Bright and vibrant scale colors
- No abnormal growths, white spots, or blemishes on the body
- Clear, normal eyes, not cloudy or bulging
Fulfill your angelfish’s basic needs to keep them happy and healthy. Give them ample swimming space and avoid overcrowding the tank.
Feed them a healthy diet of high protein pellets, insects, and larvae. Maintain their ideal water conditions and clean their tank regularly. Lastly, be prepared to separate them if they become too aggressive and fighting occurs.