Yes, I let my tank cycle for 4 weeks and then added one fish a week. I have three 1" fish right now. I used this tank for 4 yrs as a cichlid tank and moved on to Saltwater. Water test: Ph 8.1, Amm 0, Sp Gr 1.024, Nitrite 0, and Nitrate always 15-20. They never go down or up. But I do have...