Macro-Pure Nitrate & Tannin Remover 375ml

Description

Macro-Pure is a macroporous synthetic polymer resin filter media with a much greater absorption capacity than many comparable products. It rapidly clears brown, tannin-stained water and absorbs nitrates by filtering out nitrogenous waste, giving you a highly effective treatment system that purifies and polishes aquarium water. Best used inside a Macro-Sock or net bag in your filter.