I recently got a two inch tiger oscar for my 75 gallon tank. I want to make sure that I am doing things correctly. It took me one month to cycle. He is living by himself and is very active. I feed him cichlid flakes and plan on adding cichlid pellets and some other things when he gets bigger. My current water is perfectly clean and the parameters are as follows. Temp 79 degrees. Ph 7.4. Ammonia 0. Nitrite 0. Nitrate 10. I was told that as long at nitrates were kept below 40 it would be fine. With these current parameters should the fish be good to go? Is the hardness of any importance? I added stress zyme and stress coat to the water as well as cichlid trace elements. Should I add some salt for this fish? As well, would this oscar get along with a pleco?