In the past I purchased Marc Weiss product Black powder & Combo Vital for my reef tanks. Actually I just gave both products away for free a month back. I thought they were both a waste of money honestly. I did find the additives were a bit pricey and didn't find that I had fabulous polyp extension or growth, when I spot fed. Thinking back I did have cyna bacteria in those tanks at that time, but can't be sure it was because of those products.
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~ LeeWorld ~
"Not using a quarantine tank is like playing Russian roulette. Nobody wins the game, some people just get to play longer than others." - Anthony Calfo
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