Review on Optimized Surface Skimmers for Aquariums: Black Hole Skimmers by Dawn Valdez

This is by far the best skimmer I have found on the market after trying so many of them. Snails and fish into other skimmer, with guppy protection in place, this will prevent creatures from entering, even if they managed to get into the skimmer, there is plenty of water in the skimmer for the creature to survive. Many skimmers have the problem of the float losing buoyancy but not with this one as it allows a small amount of air to enter the float and stay afloat. I would like to deduct a star for its bulkiness but decided against it as it is the best skimmer I could find. on the market. The product I tried is eheim 350lily pipe with attached skimmerAquario neo flowSeachem tidalaquaclear HOB with ocean box design skimmer