pdv pond salt / food salt

Will not permanently colour the aquarium water Harmless to filters and all species of fish and plants. Calculate dosage from table in guide to fish health (enclosed)

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