Was fairly disappointed with the results of my last scrubber. I got a lot of bubbles appearing on the screen, which hindered growth pretty significantly. I think this was primarily due to the lack of heavy agitation on the screen. So next up I'll be building a waterfall scrubber. My goal is to make it very compact. Size wise, I'm aiming for 150 cubic inches for a 2 cube per day waterfall scrubber (300cm² screen), including the control board + LED drivers. The idea is in my head, but hopefully I should have a prototype made within the month. Fun fun fun.