11W Aquarium UV Light for Fish Tank, UVC Light Fish Tank for Aquarium Algae Control, Submersible Waterproof UV Lamp with Timer and Hood for Pond Sump Swimming Pool

This was a life saver! It came in bare packaging but boy does it work! Our tank is so clear and we can see our fish! .We were battling severe green algae. So glad we ordered this UVC light. It worked overnight.

I put this down in my sump not in the display tank. I have never had a big algae bloom this tank has been running for about 13 years. I love the timer, you shouldn't run it non-stop. I did the two shortest timers I think it's 2 and 4 hours. One day I would do 2 the next day the slightly longer one. It is basically crystal clear a week later. Next I will move it to my smaller tank because it doesn't need ro stay in this one. the bloom happened after a major cleaning. I don't write a lot of reviews but recommend this product, thank you.

The light worked fine for the first cycle of the timer. Over the first night the glass tube leaked and shorted the light.

Suction cups do not work very well but I like the timer. I’ve been using this in my shower as an extra way to clean my bamboo bath mat. I didn’t expect the suction cups to work very well but overall a good value for what it cost.

Our water fountain has been the Bain of my existence since moving into our home. We live the sound of water falling and the hummingbirds that comes to drink from it, but I have to constantly brush it clean from algae and sludge, change water and treat with algaecide (which I hate since hummers like to drink from it). All of the sudden, an idea came tome after purchasing a similar product for our koi pond (which works beautifully!!), so I decided to try a UV cleaner in our water fountain too. What an awesome idea! After doing a final scrub down over 2 weeks ago, the water is still crystal clear (I do have to pick out the dead fallen leaves from it every now and then) with no smell and zero algae!!! Try it on your koi ponds, water fountains, aquariums!!! You won't regret it! I only wish I thought of this sooner!!! The hummingbirds are loving it!!

In the afternoon, sunlight shines on my fish tank, and green algae has been a problem for me for years. But after I bought this light, it truly worked wonders — in just one day, the water became crystal clear! I can’t express how grateful I am. Thank you for such a great product!

Great price and delivery was very fast

I added this to my 20 gallon aquarium. I am not really noticing any difference in the amount of algae. The clamps are not easy to use to hold the light into place.