Good thing Im using ULNS

[Doug]

Originally Posted by Myka

Often you need a little gfo or other phosphate reducer every once in awhile to keep the ratio. Phosphate tends to build up in our tanks. What you don't want to do is brong phosphate to zero with a reducer. If there is no phosphate then the carbon dosing won't work (won't lower nitrate. ..it needs both).

Thanks Mindy. I have never bothered much with a phosphate measure, as Im always running gfo anyways. Guess I will have to if I go with the carbon dosing. II find my Salifert test kit not the easiest to read however.