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High nitrate levels can encourage excessive algae growth, which can make the aquarium look unsightly. Unlike other nitrate reducing products, which need regular recharging and replacing, NitrateMinus is simply added weekly to the aquarium. Also unlike many ordinary nitrate reducing products, NitrateMinus does not need to be added to a filter system to work, but is simply added straight to the water. 250ml

Replicates the action of a water change, and adds additional elements not present on tap water Helps control algae. Keeps aquarium water fresh for up to 6 months