All Betta Fish Care Guides

Browse the full library, organized by topic.

Start here

• The Complete Betta Fish Care Guide for Beginners — the full roadmap in one place.
• Betta Fish Tank Setup: A Step-by-Step Guide — from empty tank to happy fish.

Tank & equipment

• What Size Tank Does a Betta Need?
• How to Cycle a Betta Tank
• Best Filter for a Betta Fish Tank
• Does a Betta Fish Need a Heater?
• Best Betta Fish Tank Heater (How to Choose)
• Best Live Plants for a Betta Tank

Feeding & water

• Best Betta Fish Food: Pellets vs Flakes vs Frozen
• How Often to Change Betta Tank Water

Health

• 10 Common Betta Fish Diseases and How to Treat Them
• Betta Fish Losing Color or Fin Rot: What to Do
• How to Tell If Your Betta Is Happy (and 5 Stress Signs)

Behavior & longevity

• Can Two Bettas Live Together?
• How Long Do Betta Fish Live?