Mar 30, 2013 #1 F fmalin New Member View Badges Joined Mar 18, 2013 Messages 8 Reaction score 0 Location New Salem Pa. Rating - 0% 0 0 0 Hi,fmalin Thanks for advice on cyno on rocks, I used GFO in my sump and phosphates went from .25 to 0 My kh 6 did a water change it was due,tested again now it is 8 kh :smile:
Hi,fmalin Thanks for advice on cyno on rocks, I used GFO in my sump and phosphates went from .25 to 0 My kh 6 did a water change it was due,tested again now it is 8 kh :smile:
