I never tested for po4
in my water until recently so I can't say, I was going through resin quickly so I added a 2nd. My frined had tested and had some po4
buckeye supply has housings for an extra cartridge.
I do have po4
in my water before the filter and 0 after, I am running 2 different water filters for my tanks. I run a kold steril and ro
, the KS has no waste water so I was trying that out on my reef and thats when i had the cyno issue. Its funny I run KS in my 55 and have no algae and I ran it in my 125 and had tons of cyno... the lighting is the only big difference... so IMO
running 2 Dis helps.... It may sound funny but I seem to use less resin running 2...
Try using a better quality resin and if that does not help then you should run 2 DIs.