Aquarium Filter U-V for 20-45 Gallon, 200GPH Fish Filter with 5W U-V Double Light Green Water and Algae Submersible Powerful Clean Pump for Turtle Tank Saltwater Freshwater Crystal Green Killing

I wasn’t sure about this product but OMG it works. I am posting day 1, day 3 and day 5 pictures. I love my tank again. No more Algae Bloom. Healthy fish!!!

This got rid of the algae bloom in a few days, was super easy to set up, added a nice flow of water to my tank, I recommend it to my family who bought & used it on her tank with the same amazing results.

These are terrible. The UV lights all fail. The design it's water tight even though it's supposed to go in an aquarium. DO NOT PURCHASE. Don't even take it if it's free.

The media could not be loaded. The Dozont Aquarium filter with UV worked well at clearing out small pond algae problem. The combination of heat and direct sunlight cause green algae water and we had tried various chemical products to clear the problem. The UV filter did a great job of clearing the green water, from thick green to transparent! It took 5 days to get cleared enough to see the bottom and plants. We are planning to put Koi and Goldfish in next but will allow time to insure that the clarity stays. The filter was easy to assemble, just right size for our pond, vary quiet and as stated, it worked.

Set up a new tank and I knew it was fully cycled. But had a white algae bloom then it went to a green algae bloom. Tried everything to get rid of it kept getting worse. Little skeptical about this UV filter. When I got it set it up did a 50% water change. Let the pump run for 24 hours for 4 days and it was completely clear. For a week I ran it for 2 hours every day just to make sure it was completely gone. Definitely would buy again definitely works if you do it you're supposed to do into a 50% water change. If I wouldn't have it probably would have took 2 weeks and please don't stare at my wife in the corner LOL

Filter UV light and pump works as advertised. However, upon receipt, first disassembling and inspecting all parts before use in my tank, I discovered the internal lamp housing was already wet. Thus I suspect I was given a used or returned item. After using for about two weeks I noticed that the filtration was actually pretty abysmal. While the filter pad captured very large floating debris it was useless for finer particles as the filter was too porous. Hence, I doubled up the filter with another all purpose filter pad and hoping for the best.

I did not like that it was wet and used.It took a week a two to clear my tank, but now my tank is nice and clear.

The benefits of UV light filtration are numerous: but UV filters can be expensive (why?) or they can be affordable like this one! This filter was easy to install, so easy to clean, the suction cups are incredible and still works perfectly after months of everyday use. I love that it creates a water flow through the tank while adding aeration (and volume of airflow is so easily adjusted!)I love that you do not need any additional equipment and it can replace your bubbler.My water quality has never been better or more consistent and the added bonus of the UV light preventing algae growth and parasites= win+ win!