ralph atl Active Member Market Messages 6,671 Reaction score 15 Jan 18, 2010 #1 GFO is an awesome product for reducing phosphates day after day, year after year................. However, as this article states, you must go SLOW to start! here are some possible issues when starting and using GFO:
GFO is an awesome product for reducing phosphates day after day, year after year................. However, as this article states, you must go SLOW to start! here are some possible issues when starting and using GFO: