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 have and still run an air driven skimmer on my 75,I love them never any problems.
I do however have the new ETSS sump buddy 40 on my 120 but 25 years ago when I had my first reef, venturi skimmers didn't exist I would hook up the "old school" skimmer run it with a tetra luft air pump variable...