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low nitrate no3 discus

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  1. Blue Ramirezi

    Extremely Strange No3 Reading?

    Hi guys! Recently I was away for a VERY long time (2 months) in a nice trip around Europe However, It appeared as though it had slipped my housekeepers mind to do water changes (she had been briefed) Which is rather sad when keeping discus. However to my extreme surprise, the fish were...