Been looking into doing one of these in my 75, ive got a bad issue with cyno.
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Yeah, I'm getting that now, just thought it'd be easier when cleaning to remove one screen and clean good, while leaving the other screen on so there's good algae to continue pulling nutrients while the changes screen re grows. Or is that not really a major concern?You will probably only want to use a single screen. Double's will get dark growth in the middle.
I'm still waiting to hit the lottery jackpot so I can fund testing of scrubber performance. IMO the shading issue is more of a concern with fluorescent-based scrubbers, LEDs (high power, at least) tend to penetrate deeper and keep the base growth alive longer.
On my old T5HO scrubber, you could tell it was letting go because if I waiting past 10 days to clean, it peeled right off in one pass of the scraper and the screen hardly had any holes filled in. On my LED units, after 14 days (sometimes 16) the algae is still so strongly attached that I have to scrape it hard, multiple passes.
LEDs definitely are the better light source, for many reasons.
growing nuts
MakersLED are only the heat sinks, the driver is a Meanwell (not Makers LED)
you have a Rev 2 L2 (U shaped cutouts for the slot pipe)
The piece in the first pic is the false bottom, goes in first, feet down. Protects drain. I have an updated one but you also need to mod the bottom drain (for the higher flow version). Rev 2 L2 doesn't really require it, but it does offer a bit more volume/protection.
You can do either on the feeding of the scrubber, but if you go off the tank drain line you need overflow protection on the tank - in case something goes down the drain and gets stuck in the pipe or on the screen that sticks up into the pipe.
Also PM me your email address, I'm guessing you don't have the snap-on light blockers, or at least, I don't see them. Or hit me up on GIRS (converted to Xenforo by yours truly about a week ago - much better now)