As many of you know, I've been slowly upgrading my 50 gal long reef. It's been plagued with algae issues since I inherited it nearly 5 years ago. Last year I added a deep sand bed and upgraded from 2x55W PC lighting to 4x54W T5HO. A couple months ago I added a sump, but no refugium. Due to limited space, I decided to try an Algae turf scrubber. So here's the construction photo's and updates on how it's working. ...