I saw a Deltec nitrate remover today at the LFS, it look fairley easy to make and the LFS said they can get the filter medium for about £15-20, has anyone ever made/used one? it looked like it used a pump to re-curculate the water in the tank.
I cannt have another 'little' tank above it with plants in to remove the nitrates
I cannt have another 'little' tank above it with plants in to remove the nitrates