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.
how high were your lights above the water line? at 100% intensity, without measuring PAR, you'd have to be (IMO) atleast 16-24'' above the water line.
That high intensity seems like you could be cooking your corals
Personally, I’m very apprehensive about buying used items, no matter what it is. In this hobby, IMO it’s about the warranty that you get when you purchase anything new.
The way I see it, for a few dollars more I can always purchase something new vs. buying used. Unless I get it at serious...