Review on 🐠 AQQA Aquarium Internal Filter, Submersible Power Filter with Adjustable Water Flow - Ultra Silent Biochemical Sponge Filtration System for Clean Fish Tank Water by Misty Mcclellan

The location of the channel is unclear even when watching the video! The video shows him wearing it and then shows him working without it. The instructions say it's for water flow, so why is the video showing you how to plug it in and then run without it? I thought my 30 gallon tank was leaking after installing this filter. So I emptied everything and then realized it was the air hose from the filters. He pumped water onto my floor. I would give it a 5 but the air hose created by the instructions made a huge mess. I like the filter. I'll probably buy another one, but be careful with the hose.