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High-quality production processes ensure that every container contains pure, safe bacterial colonies, free of undesirable contaminants. Fluval Biological Enhancer, 1 oz (30 mL). Fluval Biological Enhancer, 4 oz (120 mL).
Like most fish keepers I was eager to get fish into my new fish tank ..weeks of waiting and water tests were fruitless as the parameters were not quite right for live stock . So I purchased this product ..as you put it into your clear tank you can see millions of bacteria ... after doing as instructed over a couple of weeks the water became perfect for fish .