1) Timer set for 10 hrs
2) Current run at 20 days
3) Screen is as flat against the back wall and far away from light as possible
Part of the problem is that I can't effectively adjust the bubbles because the initial cuts on the air hose were too deep and would not allow me to close the holes nearest to the air-tube bend. This resulted in bubbles mostly just going to the side of the screen. I tried to use crazy glue to get bubbles to evenly disperse across the screen, but it never really worked. Add to the fact that I melted a hole in the screen.
That is why I am thinking it would be better to either scrap the experiment or start with a new in-tank screen/air-tube assembly.
The new Green Grabber texture looks to be much more evenly disbursed but if the magnets won't work then it's a moot point.