What to test
During a new tank cycle, test ammonia, nitrite, and nitrate regularly. A cycled aquarium processes ammonia and nitrite back to 0 ppm within about 24 hours.
New Tank Guide
Cycle it right for healthy fish tomorrow.
Beneficial bacteria make fish waste safer. Give a new tank time to cycle before adding a full stock of fish.
How It Works
The freshwater nitrogen cycle.
Fish waste and uneaten food create ammonia, which is harmful to fish. Beneficial bacteria convert ammonia into nitrite, then nitrate. Ammonia and nitrite should be 0 ppm before adding fish.
How long it takes
Most freshwater aquariums take about 4-6 weeks to fully cycle. Established filter media or bottled bacteria can sometimes help, but regular testing still matters.
The biggest mistake is adding a full stock of fish too soon. Start slowly and ask Gigi for help matching fish to your tank size and water conditions.
Full cycling guide
