S sadred123 AC Members Mar 5, 2007 12 0 0 Mar 18, 2007 #1 hi have a aqua medic nitrate reductor 400 do i need to use co2 on it to make it work should i use bio balls or supur someone said it will make my ph drop thanks adrian Last edited: Mar 18, 2007
hi have a aqua medic nitrate reductor 400 do i need to use co2 on it to make it work should i use bio balls or supur someone said it will make my ph drop thanks adrian
