My nano had a pretty decent flash of red cyano. Followed the instructions. I also added Aerostone a day before applying powder. For me it was a bullet. Shovel MICRO. But somehow within 48 hours my stone and sand were as clean as day one. Great stuff!
EcoBio-Block Stone: Natural Water Clarifier & Odor Remover for Aquariums (Medium) - Treats 15-40 Gallons Efficiently
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12 Count Greenpro Root Tabs Fertilizer Tablets: Ideal For Aquariums, Ponds & Water Gardens!
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