Looks good supaboy, great pics...
Is that a fan directly above the ATS? (the pink clip)
Any possibility of moving your light directly above the ATS as close as possible to the screen with out getting it wet??? ... and moving the fan?
This bears repeating... YOU KNOW that it takes 4-5 weeks to grow enough algae to start functioning @ 100% ?????????????
...and that means you will have scraped 1/2 of the screen each 5-7 days alternating so that you have some algae on the screen doing the work.................
..................and to rinse all of the screen in fresh water to kill off (excess) copepods each time you scrape it. If you start getting circular holes where the algae does not seem to be growing it is actually harvest circles from the copepods munching down. You don't want the copepods munching algae in your ATS and don't worry they come back in the millions the next day... you just can't see them.
Also, look inside those clips.... there may be a small plastic (clip) inside the larger clip acting as a spring that may work to hold the screen down to the lip of the housing?...and is not as noticable or that will shade a part of the screen.
Brian