Have a couple things going on and both pretty cool. My ORP has been going down the past week. I wasn't expecting much at all from the Turbo ATS. Or find something wrong.
My PO4 levels have been maintaining below .09. So, again I wasn't expecting much from the screen cleaning this round.
I was totally wrong and knew it immediately when I felt the weight of the screen while pulling it out. Heaviest I've felt yet and thickest.
Front
Back
Most I've scraped off yet
Had some nice bacteria through out the pile
Now for the ORP drop for the time while having stellar algae growth on the screen. Something I've experienced in the past has finally worked its way into a nice little bloom on a couple rocks. I've been expecting it and thought I would have had it a lot sooner. And that's Dinos. I've had them in the past after going thought cycles of various algaes, diatoms, and Cyano.
I don't expect it to spread. I also don't plan to do anything special or drastic. Basically just like what I did for that last cyano bloom and every other bloom. Stay the course and let it take care of itself.
I'm of course fully theorizing here but I believe that the dino blooming over the past couple weeks has driven the ORP down. Again, will find out once the Dinos go away and see if the ORP climbs back up.