Coral Vitalizer and AA's.
Start out with 1/2 the dosage stated on the bottle. Give it a few weeks then you can bump it up.
You will be amazed at the difference in colors and health. LPS and softies also improve dramatically with both these products.
This was my experience. I do not run a full Zeo system.
Just a ULNS tank.
Signs of over dosing will be film on glass.
Go to the zeo forum...