Review on FEBSNOW Aquarium Suction Cups Adjustable by Elizabeth Shelton

is fantastic! I had a major problem with my Oscar Chiclid tearing off the filter inlet/outlet and pulling out the air hoses. I swear he did his best to break the filter or he's just a little git who enjoys destruction. These little suckers solved the problem in no time! The zippers are a bit fiddly at first, but once secured they are very strong and the suction cups stick to the glass very well. I've been using them on the filter and air lines for weeks now and my unholy fish horror can't move them at all! They are also good for anchoring rhizome plants (like java fern) to the bottom/sides of an aquarium without burying them in the substrate.