Cycling Tracker | FishTankCalculator.com

Fishless Cycle Tracker

Dose ammonia, test daily, and watch the ammonia spike fall, then the nitrite spike fall. When both clear 0 in 24 hours, you are cycled.

How a fishless cycle works

A fishless cycle grows beneficial bacteria before any fish go in. It usually takes 4-6 weeks.
Add an ammonia source (pure ammonia or fish food) to about 2-4 ppm to feed the bacteria.
Stage 1: ammonia converts to nitrite. Stage 2: nitrite converts to nitrate.
You are cycled when both ammonia AND nitrite drop to 0 ppm within 24 hours of dosing, and nitrate is present.
Do a large water change to lower nitrate, then add fish slowly. NEVER add fish to an uncycled tank.

Day	Date	Ammonia (ppm)	Nitrite (ppm)	Nitrate (ppm)	Action Taken

Notes

Bacteria starter used, ammonia source and dose, temperature, the day each spike peaked and cleared.

Keep the tank warm (around 80°F) and the filter running throughout to speed the cycle. Do not add fish until ammonia and nitrite both read 0 ppm within 24 hours of dosing.