Review on 🐠 High-Performance Flexzion Submersible Wave Maker with Magnetic Mount, Adjustable Flow Rate - Perfect for Aquarium Fish, Marine Coral Reef Tank, Pools - Suitable for Fresh & Saltwater - 1600Gph by Cecilia Spencer

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 that I believe is used to adjust 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.