I setup a new 20 gallon tank on Saturday. New substrate (ADA New Amazonia), new water, planted with cutoffs from my existing tank.
For the last 2 weeks I had an eheim 2213 running in parallel to my eheim 2074 with my existing tank. I moved the 2213 to my new tank.
I started on Saturday to add 20 drops of Dr. Tim's Ammonium Chloride. Ammonia went up as expected to ~2ppm. I continued Sunday and Monday morning. Last night I checked also nitrite and nitrate. Ammonia was arround 1ppm (as expected since I had added drops in the morning), but nitrite was 0 and nitrate was between 20-40ppm.
Does that mean that by using the filter from an established tank I basically quick cycled my tank?