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 wonder if you still have the ETSS skimmer. I do .
I do not recall if I have ever seen or placed mini bioballs in it. I do not see any in the black downtube now. I have had it for YEARS!!
I note above that a Rio 2500 pump ( >700 gph) was used. I have been using a Danner/Supreme mag drive...