yea I do have a high rejection but the grass on the side of my house is so green now lol, plus I have a small tank so I don't make alot of water,Originally Posted by BIGBIRD123
the gac came from a bunch filters I got what do you suggest I run instead
REEF MAFIA
"TEFLON DON"
Assuming you're on SAWS, you can eliminate it when it's spent. No point in buying another cartridge.