VIVOSUN 400GPH Submersible Pump(1500L/H, 15W), Ultra Quiet Water Pump with 5.2ft High Lift, Fountain Pump with 5ft Power Cord, 3 Nozzles for Fish Tank, Pond, Aquarium, Statuary, Hydroponics

Why did you pick this product vs others?: Works well for Fluval 9 gallon. Upgraded the freshwater to saltwater and have the right flow. Fits with no other modifications needed. Hopefully chugs along for a few years.

The type of fish I’ll be keeping in this tank require a higher filtration and flow rate. This is a wonderful upgrade to the stock pump it came with. Fits perfectly and provides at least 2x the flow rate if I were to guess.

I got this pump to circulate water in my garden feed tank. It has plenty of power and since it's submersible it is quiet. I dropped to 4 stars only because the air diffuser intake does not work when the pump is fully submerged in my tank. It works better in a shallow install and blows air well.

Just replaced an older pump I had in my hydroponic garden and this thing is soooo much quieter. Like night and day difference. My wife is going to be so happy cause now it just sounds like a fountain instead of a loud motor and a fountain..

Works perfect in my Fluvall 13.5

Installed 28 NOV 25 Update......20 JAN 26 Update.......9 FEB 26 Update .......16 FEB 26 Still buzzing loud. 130 GPH quit after 30 days of 8 hrs a day running. Bought a 400 GPH. 400GPH runs 8 hrs a day. It whines very badley. Water is non salt, very clear, 1 ft lift to a T then 1 ft to filters. Buzzzzzzzzzzzz INTO THE TRASH......

Was easy to install and adjust. It has been here for about 6 weeks and working well. Had a few leaves get caught in it and was easy to clean. So far, so good. Updated. This pump keeps needing to be reset. It goes from putting up the amount of water we want to a tiny dribble about once per week. The switch must be defective. Sad, because I liked it.

Perfect, I’ve been using this in my tank for a year now and couldn’t be happier