Sicce Zeronitra Nitrate Sponge
ZeroNitra fresh water eliminates nitrates in 48 hours and keeps on working to maintain the minimum level. ZeroNitra fresh water's effectiveness depends upon the amount of nitrates initially present in the aquarium, and the rate at which new nitrates is produced by the biological filter. ZeroNitra fresh water is suitable for fresh water aquariums and does not alter the PH.
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