Review on 🌊 Enhance Water Circulation in Your Aquarium with Flexzion Submersible Wave Maker: Magnetic Mount, Adjustable Flow Rate for Marine Coral Reef Tank, Pools, Fresh & Salt Water Fish by Sara Murphy

Considering how inexpensive this thing is I was blown away by its performance. Works great for movement and flow, just no frills. It's plug and play, very simple and solid construction. There is a small plastic wheel in there which I think is for adjusting the flow but I can't change it so I had to use it in my large reef and not the small nano I bought it for. It would be overkill for that or under about 30 gallons depending on what you store in it. but you definitely can't go wrong for moola.