I have used the Reef Octopus NS80 and the Hydor Slim Skim Nano Skimmer on my tank. Neither one pulled anything close to what this lil $6.00 surface skimmer is pulling out of my tank. I've got it hooked up to an MJ600 that is also acting as my intake pump. The pictures show 3 days worth of YUCK! I'm very pleased

IMG 0155 - TOM Aquarium Surface Skimmer.
IMG 0153 - TOM Aquarium Surface Skimmer.
IMG 0152 - TOM Aquarium Surface Skimmer.