Colombo NO3 Test Kit

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Colombo Nitrate Test Kit (NO3), is produced from the breakdown of nitrite in the filter.Nitrate is relatively harmless to freshwater fish, but its presence can indicate a deteriora tion in the aquarium environment, and high nitrate will encourage algal growth.The only way to know what the nitrate level is, is by testing it with a Nitrate test kit.Colombo Nitrate Test Kit contains 40 tests. Show more