Who Gives A Fish Forums

Trace elements can help, but it's easy to overdo it. I'd test before adding anything extra. My tank's a 90-gallon with a refugium, and I dose iodine sparingly. Acropora seem happy, but it's hard to say if it's the iodine or just good water quality.

I've never fed my Acropora directly. They get whatever's in the water column from fish food. Tank's a 55-gallon with a skimmer, and params are solid. Maybe I'm lucky, but they're growing fine.