Are there any additives for corals that increase the coloration?

[chris009]

I've heard that there are additives such as zeovit and probio that make the coloration of corals much better. Does anyone have any experience with such products? Is there a cheaper additive that will have the same results?

 

[maxalmon]

Zeovit doesn't actually create the color in corals, it's a method for reducing nutrients in your tank using a reactor and media thats exculsive to zeovit, most people using this method are also going bare bottom as well. usually if you have high nutrient rich water, the corals look bland...
I tried the prodibio system and wasn't that impressed and really didn't see any results.