u know wat, this zeovit thing to me hor, is the same thing as reducing nitrates and phosphates and DOCs and nutrients to allow ur sps to color up.
nothing new, just another way to accomplish the same thing. so be it DSBs, fuge, sump, etc... its just many of the ways to accomplish low nutrient environment for our SPS.
i however feel its quite aggressive though judgin from u guys posted, just like the irritating carbon thingy. so i guess must dose little bit at a time but regularly right...which is a PITA if u ask me. think most of the other current methods are less PITA methods!