Ok so thought I'd finally throw together my build thread for this. For those who don't know, an algae scrubber in short is a device which helps to export nutrients from the water, decreasing and removing nitrates and phosphates. This removes the nutrients from the water column necessary for algae to grow. Better in the scrubber than our tanks right? First off I had to, well wanted to switch my plumbing over to pvc. If it wasn't for this it would have been a really cheap build. I split the return and ran one to my skimmer section and the other to my scrubber. I put the ball valve on top control the flow rate to the scrubber. In hind site I wish I would have put one on the skimmer side as I didn't have enough flow to the scrubber. Thankfully I had some odds and ends sitting around which I used to reduce and restrict the flow diverting it to the scrubber. Sorry for the low light. Here we see the actual scrubber. All it is, is a sheet of plastic canvas from any craft shop Roughed up. A slit is cut down the length which the canvas is slid up into and held in place by zip ties. The right side is capped and a spare piece of pvc is used to help support it. On the left is a Union to allow easy removal and cleaning. I used 1" pvc, 3/4 would probably work too. The lighting is handled by an every day shop light I had laying around which should have a cfl bulb in it. This is where you may want to do some research. Led like many other things is starting to take over. 660 nnm red has been found to provide some of the best growth rates. I just added a small compact florescent to the other side today which showed to have a decent amount of red in it. I eventually intend to light this with led if it proves to be successful. Here is a growth shot from today which is about 3 days worth. Keep in mind that I haven't really had good lighting on it yet and they typically take a couple weeks to get going. I also had to shut the light off behind it to catch the algae. These are super easy to start and very cheap. So far it appears to be working. I'll add growth shots and first cleaning shots when we get there.