I've seen these referred to as "Pod Circles" before. Not sure how accurate that is though. Looks more bacterial to me, but as I've never experienced it, not really qualified to judge. Don't suppose you've seen any pods on the screen ?
Tank, radions turn on super yellow in the am, later its bluer and nicer. Sent from my SGH-T999 using Tapatalk 4 Beta
Fellas! I've been gone as well, put a rod through the block in my car so doing a build. Floyd I'm sure you could appreciate that What happened over at algae scrubber? Someone didn't like the fact that you guys were making more advances in the hobby than himself?
I always intended on starting my own forum for customer support but it's slowly morphing into more. I also don't want this site to be exclusively about algae scrubbers but rather addressing any issue.