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- Mar 20, 2017
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agreed. my prorocentrum took the better part of 14 months to overcome.you must never had a really bad outbreak or you only had ostreopsis dinos, the easiest to get rid of, with just a simple UV filter. But prorocentrum grows on rocks glass and sand, doesnt migrate to water column, and you can only beat them with silicate and nutrient dosing over a very long time table. Its a long drawn out battle that sucks.