TARARIUM Small Aquarium Filter U-V for 10-45 Gallon Tank, 158GPH Fish Tank Filters for Betta Fish Tank Green Clean Machine, Internal Pump Filter for Turtle Tank Saltwater Freshwater Crystal Clear

I’m really impressed with this filter! It has great water flow and does an excellent job keeping my aquarium water clean and clear. It was easy to set up, runs quietly, and the 400 GPH flow provides plenty of circulation for my tank. The UV feature is a great bonus and gives me extra peace of mind when it comes to maintaining clear, healthy-looking water. Overall, it feels well-made and performs exactly as I hoped. Definitely a great value for the price, and I would recommend it to other aquarium keepers! 🐠💧

8/7/26 update: Pump finally failed after about 15 months of using it around 10 hours a day (6am to 4pm). UV bulb and filter still good, so I just ordered a whole new assembly to replace the pump. Now I have a spare bulb and filter! This filter has been great at controlling the algae growth. I definitely recommend this for use. Would be great if you could just purchase a replacement pump head. I wanted to wait and see how effective this UV filter was before writing a review. My 10 gallon aquarium always had a very bad problem with algae growth. I could clean it, replace the water but the algae would come back in about 2 weeks just as bad as before. I even had a UV bulb that I had placed in my regular TopFin filter but it didn't seem to work at all. I purchased the TARRARIUM CTUV-H4F (for 10-45 Gallon) UV filter back in April. I put it in and left it on 24/7 for about 2 weeks until I couldn't see any algae in the aquarium at all. I'm pleasantly surprised to say that it's been about 2-1/2 months and I haven't had to turn on the filter again. It's still in the aquarium (just in case), but I'm shocked at how well it worked. The internal foam filter was actually still clean after use. I recommend using this along with a regular aquarium filter. I would highly recommend this UV filter to anyone who has algae problems. I wish I had a before and after picture to show the results, but believe me, it really worked that great! It was really worth the price and now I can spend more time enjoying looking at the aquarium instead of cleaning it.

This UV filter has been a great addition to my aquarium setup. Installation was quick and straightforward, and it started working immediately. Before adding driftwood to the tank, the water was crystal clear and looked like glass. I currently have natural wood in the aquarium, so there is some visible tint from tannins, but that’s coming from the driftwood—not the filter. Even with the tannins present, the water remains clean, healthy, and free of cloudiness. The unit is compact, doesn’t take up much space, and the suction cups hold it securely in place. Water flow is consistent, and the UV sterilization helps reduce green water and other common water clarity issues without requiring constant maintenance.

I have had this filter UV light for almost a year and use the UV light about every two weeks for 8hours. This morning I turned it on and about 3min later I hear something smack the wall and then I smell hot plastic. Go and look and the cover for the light switch is laying about 10feet from where the switch is! I quickly unplugged it and made sure it was not going catch fire and removed it from my house. I am afraid if I had not been home it could have caught fire. I change and clean the filter every two weeks between when running the light. Filter pump runs 24/7. This is unexceptionable!

Bought this to replace a failed filter in my turtle tank. I wished I bought it sooner. It filters the water so much more than the old one. The ability to aerate the tank along with the UV light is a tremendous improvement over the old filter. The tank stays so much cleaner and clear now.

Very helpful to my cloudy water aquarium. Would never have an aquarium without it! Need better suction for stability.

Really excellent. It cleared some stubborn algae from my tank in about a week, and got everything in balance. I am very very happy with it— the current is sometimes a bit strong for my tank (20 gal) but a really great product for the price. The attached photos were taken about a week apart.

UPDATE1: I had to do a water change today as it was time and I stopped the filter just like I always do to avoid any issues. I changed out the water and filled the tank back up. Once again the aeration stopped working. I don't understand why it's not working though it is rather frustrating as this was one of the things I wanted. I have to say I'm a little disappointed with this. I got this when my old filter system fell apart. The installation was easy and at first it really was working well and I was happy with it. About a day later my daughters told me that it was "spitting" and I went to look. The aeration wasn't working like it was in the beginning. I couldn't figure out why as I hadn't done anything with it. It was disappointing and I pulled the system out and cleaned it (even though it had only been a day) and put it back together. Luckily it was really quite easy to pull out and clean and get back in. After I re-installed it the aeration still didn't work that well though I was able to get it to work a little. I will say the suction cups on this thing are amazing. They old everything on tight. I do with the unit I got came with a flow director like the larger ones. It does look fine in the tank where I have it and doesn't seem to take away from the rest of the tank. For the money I spent I'm not too disappointed and I'm looking forward to see how it works with the UV light to help clean the tank. It does seem to work pretty well overall.

Très bon produit facile à utiliser et il se nettoie très facilement bonne puissance je l’utilise pour un bassin de 150 gallons

I recently purchased a UV filter for my aquarium, and I couldn't be happier with the results! Within just three days, the water went from cloudy to crystal clear. It was incredible to see how quickly and effectively it worked. My fish seem healthier, and the overall appearance of the tank is much more vibrant now. The setup was straightforward, and the filter runs quietly, which is a huge plus. I highly recommend this UV filter to anyone struggling with cloudy water or algae issues—it's a total game changer!

THIS IS A REMARKABLE FILTER WITH A U-V LIGHT FOR AN AQUARIUM THAT IS HAVING TROUBLE WITH CLOUDY WATER. I WAS HAVING TROUBLE WITH BROWN ALGAE ( WHICH IS NOT A ALGAE AS SUCH ) AND WAS DESPERATE . I HAD TRIED EVERYTHING TO ALLEVIATE THIS PROBLEM SO I DECIDED TO TRY THIS FILTER AND THE RESULT HAS BEEN NOTHING SHORT OF MIRACULOUS. IT TOOK A COUPLE OF WEEKS AND I CLEANED THE FILTER ONCE, BUT NOW THE WATER IS SUPER CLEAR AND MY FISH ARE VERY HAPPY. I HAVE CAT FISH ONLY AND THEY CAN BE MESSY EATERS BUT THIS FILTER DOES A TREMENDOUS JOB. I DO A WATER CHANGE EVERY WEEKEND AND VACUUM THE GRAVEL AND I'M VERY HAPPY WITH THIS PRODUCT. I AM ALSO NOT OVER FEEDING MY FISH . I EVEN NOW HAVE ANOTHER BABY CATFISH WHO IS HAPPILY SWIMMING AROUND IN MY CLEAR TANK ! GREAT PRODUCT .

I have it for my out door pond. Working great

I’m impressed with how effective this aquarium filter is. Before using it, I had to change the water in my tank every two weeks to keep it clean. Now, thanks to this filter, I can go over a month without needing a water change. The water stays crystal clear and odor-free for much longer. One of the standout features is the built-in UV light, which helps kill harmful bacteria and keeps the tank environment much healthier for my fish. It’s quiet, powerful, and has made tank maintenance so much easier.