Just bought one of these HOG1 Hang-On-Glass UAS Upflow Algae Scrubber with Green Grabber surface should be arriving today. Kind of excited but can anyone tell me of their experience with these. I feel like I have been living under a rock as I never heard of this and yet its been around forever. Looks promising and makes sense in my head but then again my head has steered me in the wrong direction more times than id like.I will be running this in my sump along side a skimmer on a 100g tank.