Betta Fish
Jewel-toned fins, big personality.
Bettas are intelligent fish that recognize their owners and build bubble nests. Despite myths, they need a heated, filtered tank — not a bowl.
Photo: Daniella Vereeken · CC BY 2.0 · Wikimedia Commons
Daily care
5+ gallon tank, heater set to 78–80°F, gentle filter and soft plants.
Betta pellets plus frozen bloodworms or brine shrimp; feed small amounts.
Plants and space to explore; floating leaves for resting.
Weekly 25% water changes with dechlorinated water.
Common health concerns
Know what to watch for. Early detection makes most of these far easier and cheaper to treat.
- Fin rot
- Ich (white spot)
- Swim bladder disorder
- Velvet
- Dropsy
Vet visits
Some exotic and aquatic vets treat fish — test water first when issues appear.
Find a vet near meYou might also like
More fish & amphibians
🐠 Fish & AmphibiansGoldfish
Classic, long-lived and bigger than you think.
🐠 Fish & AmphibiansGuppy
Colorful, active and easy to breed.
🐠 Fish & AmphibiansAxolotl
The smiling salamander that never grows up.
🐠 Fish & AmphibiansWhite’s Tree Frog
Chubby, chill and always smiling.
This guide is general information, not veterinary advice. Costs are rough U.S. estimates for food, supplies and routine care. Always consult a licensed veterinarian about your pet’s needs.