I did a Fishless cycle with dr Tim’s bacteria and dosed ammonia, waited about 4 weeks before introducing fish. I had dry rock and live sand. Started with a clown fish, 2 weeks later got a firefish and just put in a blood red shrimp. Seems like the right amount for a 32 gallon. I’ve consistently been checking for ph, ammonia, nitrite and nitrate. Never had a spike in ammonia, nitrite has stayed 0, and nitrate I keep at 10ppm or less. Is it better to go longer between water changes? I just found it easier to carry 2.5 gallons weekly.