Good day. I’ve recently set up anew tank, its a 350g. I live in China and bought this scrubber. I don’t have any fish in yet but theres a fair amount of GHA in the tank. The scrubber I’ve got has red LEDs, but I don’t have any idea what lumens or wattage. The screen size is 35x16cm. The feed pump is a 1000Litre pump. I’m getting slight hair growth but it’s more of a slime algae. So I’m planning to build a waterfall scrubber. I like to feed heavy so I’m planning a 12x8 inch screen build. I will also build a diy LED unit, one for each side. I’ve sort of have a plan to build it but I’m stuck at the lights. I’ve read most of the guidelines and posts by @Turbo, but I still don’t understand it. So for this screen size I’ll need about 9x3W leds per side? Is it possible to run both 660nm and 420nm lights from the same driver? I read that to start off I need half the usual power, so can this be managed by the driver? I’m clueless here and completely out if my depth. Please guide me in how and what to do.