Bettas need 78-82°F. Below 75°F they go dormant. Test temperature; if cold, replace heater + slowly warm.
Bettas rest in plants, caves, or surface near anubias leaves. Normal at lights-off and during the day in some bettas.
Bettas have higher swim bladder issues than most fish. Fast 2-3 days, then offer deshelled peas.
Bettas have 3-5 year lifespans. Older bettas slow down + eat less. Keep water pristine + temperature stable.
Bettas prefer slow-flow tanks 5-10g. Strong currents from filters tire them out.
Test water first - many "behavior" issues are actually water-quality problems. Use the water parameter checker to score your test results, the disease symptom matcher if you observe physical signs, or the general diagnoser to narrow further. Browse the full disease database if illness is suspected.
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