I use a HOG 2 on my clownfish growout system that has lots of nitrates. I can't get past the green slime stage. I run 16 hours on with the tank lights. I've tried different air flow with an adjustable pump that goes up to 7 PSI.
Here is the pump I'm using.
https://www.amazon.com/Coralife-Ener...alife+air+pump