Care Guide
Betta Fish Care Guide
A betta needs a heated, filtered and cycled tank of at least about 20 litres, water at 24 to 28 °C with zero ammonia and nitrite, gentle flow, plants and resting spots near the surface, and small meals of a quality carnivore diet. Bowls and unheated vases are not suitable homes.
Betta Tank Size and Setup
A betta needs a properly cycled, heated, filtered aquarium with enough usable swimming space, resting areas, and a secure environment rather than an unheated bowl.
Water Temperature and Water Quality
Stable warm water, zero measurable ammonia and nitrite in an established aquarium, and controlled nitrate are central to routine betta husbandry.
Filtration and Water Movement
Bettas benefit from biological filtration but their long fins and surface-oriented behavior can make excessive current tiring, so flow should be distributed gently.
What and How to Feed a Betta
Bettas are carnivorous fish that do well on quality species-appropriate prepared foods supplemented thoughtfully, with portions controlled to avoid chronic overfeeding and water pollution.
Plants, Hides, and Enrichment
Live or soft artificial plants, sheltered areas, open swimming space, and near-surface resting places create a more functional environment than a bare decorative container.
Health Checks and Common Warning Signs
Daily observation of appetite, swimming, breathing, fins, body condition, and waste helps reveal changes early, while treatment should follow a plausible diagnosis rather than guesswork.
A Practical Betta Care Routine
Consistent feeding, testing when needed, partial water changes, substrate cleaning, filter maintenance, and equipment checks form a safer routine than occasional complete tank cleanouts.
Frequently Asked Questions
Can a Betta Live in a Bowl?
Not well. Bettas need a heated, filtered aquarium of at least about 20 litres to stay healthy long term.
What Temperature Do Bettas Need?
About 24 to 28 °C, kept stable with a heater and thermometer.
How Often Should I Feed a Betta?
Once or twice a day, giving a few pellets or a small portion of frozen food each time. Overfeeding is a common cause of bloating.
Why Is My Betta's Fin Getting Ragged?
Ragged fins usually point to poor water quality, sharp decor or fin-nipping tank mates. Test the water and check the tank.
Koi Betta
Betta splendens var. "Koi"
- Care level
- Beginner
- Adult size
- 5–7 cm
- Minimum tank
- 40 litres
- Temperature
- 22–30 °C
Giant Betta
Betta splendens var. "Giant"
- Care level
- Intermediate
- Adult size
- 10–18 cm
- Minimum tank
- 60 litres
- Temperature
- 22–30 °C
Alien Betta
Betta splendens × Betta smaragdina hybrid
- Care level
- Intermediate
- Adult size
- 5–7 cm
- Minimum tank
- 40 litres
- Temperature
- 22–30 °C
Delta Betta
Betta splendens var. "Delta"
- Care level
- Beginner
- Adult size
- 5–7 cm
- Minimum tank
- 40 litres
- Temperature
- 22–30 °C