As far as i understood from the actual builder.....
They arent as bad as bio balls as the are constantly moving and dont have any waste stuck to them or collected around them....AND he has many giant reef builds in michigan he runs them on with no ill effects....
that being said i have "heard" they are still nitrate factories.... so delicate corals are a no no...
But i have zeros on all my test kits and last weekend added all the fish and a few days later more rock and its still picking up the slack....Maybe its the other 300lbs of rock mind you I just know whatever im doing its working and im feeding like crazy to try and save what few corals i have from the grazing cows ive picked up lol
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12-01-2011, 11:02 PM
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