Salifert Nitrate Profi Test Kit NO3 - Sufficient for 60 Tests
A too high Nitrate level may increase the growth of unwanted nuisance algae.
In a reef aquarium with hard corals, the nitrate level should be lower than 1-2 mg/L, in an aquarium with soft corals below 5 mg/L and in a fish only marine aquarium the nitrate concentration might be higher but should be kept below 10 mg/L.
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Especially some calcified marine macro algae will show a reduced growth when the Nitrate concentration is above 5 mg/L.
How to reduce the Nitrate Level
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