Have been using this religiously for about 6 months. There was good coral growth. Pass five around. When I ran out I simply stopped ordering out of laziness. Then, a few months later, I had an epiphany. Everything in the tank grows at the same rate as before. At least as far as I can tell. I haven't used any other product either. I have gone from using only Marine Snow to no coral food at all. And guess what? Corals are fine without. Snake oil in a bottle? I'm not sure. Perhaps a biologist would say that this is very useful. But as far as my eyeballs go, it's a waste of time and money. If you have a pure coral tank (which I've never seen) then I think that might be fine, but as long as you have fish that you feed regularly, my experience tells me that overfeeding is enough for your corals. . .
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