Small Pond Filter for 75-300 Gallon Tank, Aquarium U-V Filter Green Clean Machine Submersible Powerful Pump Canister Filter 600GPH for Fish Turtle Tank Saltwater Freshwater Crystal Clear Green Killing

My very dirty 200-250 Gal pound with no visibility after a month was clean and cleared after running this UV sponge filter for about a week. Took the gamble even with some bad reviews, but it’s working well after two weeks! Easy to get going and fairly easy to clean. Before and after picture attached. I can finally see my Koi’s and goldfish again!

I think this thing works great. I have koi in my fish tank I don't want to put them in a pond so I normally have to change my water once a week. This looks like I may not have to do that anymore. The first picture is before I get the picture is after 3 days

Purchased after my canister filter bit the dust! This is a great option! Very satisfied!

Pleasantly impressed and suprised!!! I have a 55 corner bow front community tank. I have been struggling with cloudy water with my tank. I tried treating it with carbon and clarity liquid. 200$ filter and plenty of treatments and this devise fixed my issues!! 24hrs and my tank is clearer than ever!!! Provided pictures of start to now I will update on the 7 day mark.

This filter is pretty dang amazing. I didn’t think it would work but I left it suctioned on the wall vertically, submersed in an 135 gallon turtle tank filled with about 80-100 gallons of water and the UV light on for 72 hours and the pea soup returned to broth. Am looking forward to seeing more clarity as the days go by. Came mostly assembled, just needed to plug in the air tube. Noise level is fine as it’s submersed. Can’t say much about the filtering quality without the UV as I’ve only used it with, but considering the methods my family has used prior to this filter, it seems to be working great. I also use it in conjunction with a Penn-Plax Cascade 1000 to cycle out the dead green :)