[DKoKoMan]

I have finally got a hold of the high PO4 levels in my 75g tank. I have been using Foz Down, RowaPhos in a reactor and I have increased my water changes. Today I tested the PO4 using a Salifert test kit and found it to be in the area of 0.25 (way down from previous). I will continue my reduction plan over time until I can get it close to "0" and scale back the use of Foz Down.

Is there any particular GFO people are using for long term use?