Folks, if you've recently upgraded or renewed your annual club membership but it's still not active, please reach out to the BOD or a moderator. The PayPal system has a slight bug which it doesn't allow it to activate the account on it's own.
I also have a 90G, and I run a Mag18 and "T" off my return into 2 reactors(biopellet & GAC) and have PLENTY of return left afterwards. I "T" off right at the pump. one side going to my return, the other side going to a line that has each reactor "T"ed off separately from there. The output for...