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.
There's no such thing, with an open-ended question like that, you will get experiential recommendation based on people's preferences.
If you don't have a budget, look into Reef Octopus Elite INT, either 150, or 200 if you can fit it in the sump.
Not a fan of Nyos, had 120, got rid of it as soon as I could.
I was hesitant but tried Simplicity recently. Solid skimmer, without what everyone else upcharges for "space savers".