strange fishless cycle
The tank is a 55 gallon and there is an Ehiem 2215 (little filter) with a bit of seeded biological media out of a mature tank for now.
I plan on adding an Ehiem 2217 (waiting on parts) with more seeded biological media, and adding a heater in a few days.
No heater at the moment.
I started the fishless cycle 14 days ago with 2 ppm ammonia (ace janitorial grade).
Within about a week the ammonia dropped down to 1 ppm and some Nitrite showed up, no Nitrate yet.
So I added ammonia to bring ammonia to 1.5 ppm.
I checked this morning, so two weeks from starting the cycle, and the ammonia went up to 2 ppm, Nitrite is 0 ppm, and Nitrate is at 10 ppm.
I do have an extremely big piece of driftwood in the tank, it is about 3 feet long and 8 inches wide, and 18 inches tall at one end.
Could the driftwood be the source of the ammonia going up instead of down?
I am thinking of doing a water change today, any thoughts?