Adult betta fish usually do best with small meals once or twice a day, only as much as they can eat in about 1–2 minutes without food left over.

Basic feeding schedule

  • For a healthy adult betta, a common routine is twice daily : once in the morning and once in the evening, with at least 8 hours between meals.
  • Some keepers successfully feed once daily as a single small portion, especially if the fish tends to gain weight easily.

How much to feed

  • Many guides suggest roughly 2–3 high‑quality betta pellets per meal, twice a day (adjusted for pellet size and your fish’s body condition).
  • Use the “betta’s eyeball” trick: each meal’s total food volume should be about the size of the fish’s eye to avoid overeating.

Weekly routines and exceptions

  • A lot of betta keepers give a “fast” day every 7–10 days (no food that day) to help prevent bloating and constipation.
  • Juvenile, growing, or breeding bettas may need more frequent but very small meals , spaced several hours apart, while still avoiding any leftovers in the tank.

Signs you’re feeding the right amount

  • Your betta’s belly should look slightly rounded but not swollen after meals, and there should be no uneaten food on the substrate.
  • If you notice lethargy, clamped fins, or a constantly enlarged belly, cut back slightly and consider a fast day, then adjust the portion size.

Information gathered from public forums or data available on the internet and portrayed here.