- Joined
- Nov 10, 2011
- Messages
- 27
- Reaction score
- 9
- Location
- fl
- What state or country do you live in
- Florida
How do I get my po o4 down. I don't run GFO and my po4 are running at 0.08 with Red Sea test kit. I have used a some thing to bring it down and can not get it down below 0.04.


