Hi folks, heres a scrubber that I've built form these LED's, but all red. http://www.ebay.com.au/itm/New-12W-2...item4ad1ee5e9b and 250mm storm water pvc.

I used the scrubber calculator with 4 cubes of feed as the input to generate the screen, light and flow specs. I've used a 50mm pipe as the slot bar , this way It can be plumbed loosely and the need for annoying screw fittings has been avoided. A few cm of head within the spray bar provides enough pressure to deliver water to the screen. The 250mm pipe acts as a stand for all of the equipment and once refined, will contain the light.

The screen is much larger than specified by the calculator, this is to ensure that the bottom of the screen is in contact with the water level of my sump. I am running this on a fairly new system, 3 days and no real growth yet, just a bit of browning on the screen so far. My feed input is currently very low (1 cube per day), which will increase with the age of the tank. I am still running a skimmer.






I'll pull it out and take more pics when it's due for it's first clean.

Build cost was approx $200 AUD