Last Updated: November 21, 2025
Equipment Needed
Tank
Bigger is easier (20+ gallons)
Filter
Biological, mechanical, chemical
Heater
For tropical fish
Thermometer
Monitor temperature
Light
For plants and fish
Substrate
Gravel or sand
Decorations
Hiding spots
Water conditioner
Remove chlorine
Test kit
pH, ammonia, nitrite, nitrate
Cycling Process
1. Setup tank
Add substrate, decorations
2. Add water
Conditioned tap water
3. Run filter
Start biological cycle
4. Add ammonia
Fish food or pure ammonia
5. Test daily
Wait for nitrites/nitrates
6. Water change
25% before adding fish
Cycle time
4-6 weeks
Beginner Fish
Bettas
Easy, beautiful
Guppies
Hardy, colorful
Tetras
Schooling fish
Corydoras
Bottom feeders
Platies
Peaceful, hardy
💡 Pro Tip:
Never add too many fish at once - go slow!