FREESEA Aquarium Power Filter Pump: 5 Watt Internal Filter Increase Oxygen 4 in 1 Pump | 132 GPH for Up to 150 Gallon

Works so good that this is the second one I have bought. We use them in cold plunge therapy tanks, so they run nonstop in 45 degree water and keep the water clear. They do a great job of killing germs and filtering out debris.

I started out with one of these when my turtles were in an aquarium. Bought a second when they upgraded to a stock tank so I could have a clean filter in the aquarium. Now that they are adults I’m adding a second filter so I can have one filter at each end of the tank. The filters are quiet, easy to clean, and have stood up to the turtles “rearranging their furniture constantly.” I have mine fully submerged and laying horizontally due to the setup needed for my turtle breed and these filters have worked beautifully.

I purchased this to kill an algae bloom in my 40 gallon fresh water aquarium and it has been running for a 8 days with very little change.. This UV light just isn’t powerful enough. It’s ashamed,I had high hopes for this and I was gonna purchase a couple more for my other aquariums but it honestly just doesn’t work. I have taken it apart and checked to make sure the light is actually on when it is powered and the bulb isn’t that bright. This device is one that can not be completely submerged in your aquarium. The top has to sit just above the water.. I would suggest looking for the UV light that can be completely submerged. That’s the one I saw on YouTube that got such great reviews. I thought this was the one but it isn’t.

This did well in my tank as a secondary filter, but my god was it difficult to clean. The sponges and such were easy enough, but the thing would not come apart. I took it out because the damn thing nearly broke with me trying to squeeze the clips enough to get it apart. Need a better design.

Great filter, keeps my turtle aquarium very clean. I clean the tank a lot less now which is great. However, this is my second purchase. I dropped my last one anout 2 inches off the ground and something inside came loose and it stopped working.Also some of the little parts that you have to squeeze to separate each section for cleaning are really hard to squeeze and seem liable to break if pushed too hard.

Works great for a few months uv light burn out very quickly

I have quite a few fish tanks. They range from 10 gallon to 125 gallon. I have never had any issues and always used canister filters with a combination of additional sponge filters. After moving my tanks into my new home I had a bedroom for the two bigger tanks and just having like a "fish room". It was closer to the window and even after putting black out curtains it was still causing the tank to evaporate water faster and get super cloudy. I had tried everything and nothing seemed to be working. I got this filter yesterday and by this morning it was SO clear. I haven't seen it that clear since before I moved. Thank you so much! I got this for a cyber Monday deal so it was 50% off and I am going to buy additional ones for my other tanks. If you are thinking of getting this, just do it! I had something similar but it was a "green machine UV killer" and it does nothing compared to this one. This one also is super easy to clean and take apart. :)

My 46 gallon was pea green from seasonal sunlight. Don't want to use algacide because of the nerite and ramshorn snails. I tried multiple products with straw, etc. and it just got worse. Ordered one from another vendor and the bulb wasn't working. (You have to check that the bulb is working.) Returned it and bought from here. Really moves the water and in a few days I was already able to see it clearing up. Now back to crystal clear and I use it a couple of days a week. I have it on the light timer when I'm using it. This is the answer and you can use it again when you need it. Thank you.