[Gripenfelter]

So instead of running a complicated algae scraper I tried something else.

I had a ton of snails (small and large), 2 large starfish, and 2 small starfish. Still had so much algae on the glass that I had to use the magnet cleaner almost daily or every second day.

Then I decided to stuff the refugium full of chaeto algae to the point where it was coming out of the water or breaking the surface (this is key), I did this by adding some live rock rubble under it.

And voila...been 6 weeks. Haven't touched my magnet cleaner. The chaeto breaking the surface of the water reduced the algae by about 90%. Snails and starfish take care of the rest.

Running tap water.