Available for licensing soon in the U.S. will be my water distributor tray scrubber design, as has been used for a few years on the SLIP.7 but can be used on the top of any waterfall scrubber:
It is diagramed more in the instructions:
https://algaescrubber.net/SLIP.7-Instructions.pdf
This design allows you to reach in from the top and remove the water distributor tray and screen together, upwards, easily and without turning off the water. It also can go easily into the back of AIO tanks, either as an add-on or as OEM. The finished scrubber can be any size, and can have lights on 1 or 2 sides, and can also have our optional upflow bubbles at the bottom to make it a combo scrubber.
Licensing will be reasonable and will be available to U.S. makers, resellers or importers, and can be exclusive or non-exclusive.
For people who still want to view the growth easily, and remove the entire waterfall scrubber with one hand, our RAIN scrubbers are preferred.