I finally got my fish. 30 Bluegill and 10 channel cats. They have been in the tank for 24 hours now with no apparent issues. The catfish started eating immediately after release and the Bluegill were eating after a few minutes. Both groups were very busy swimming and didn't seem to have a preference of water depth.
Today the BG are still eating very well but the catfish have become reclusive. Did some water checks to make sure everything is in spec.
Been doing small water changes to decrease nitrate level and putting in more plants. How long before the high level effects the fish?
There should be plenty of Oxygen because I have added an Eco 4 air pump with the air stones distributed around the tank where there are no water returns. There are 6 different returns that keep the water surface fairly agitated.
Any advice will be appreciated.