5W 11W 13W Aquarium Algae Clean Light Fish Tank Water Clean Light Aquarium Green Clean Light Waterproof Fish Tank Algae Clean Light for Pond Fish ...

It worked as intended. Cleared my tank in a few days. I got the smallest one since I only have an 8 gallon and put it in a back slot near the filter.

The 13W Aquarium Algae Clean Light is an effective solution for maintaining water cleanliness in ponds. I use 2 of these for my 2000 gallon pond and they work great. This UV light effectively controls algae growth, keeping the water clear and free from harmful organisms. It's designed to be waterproof, making it safe for use in aquatic environments. Overall, it's a practical and efficient tool for ensuring a healthy aquatic environment.

I bought this for a non-chilled cold plunge rub and it worked great. Until it didnt. The tube became more smoky until the light burned out after one month.

I'm actually using this for a sterilizer box, not an aquarium, but the actual usage and ultimate purpose is essentially the same as its intended purpose. As far as I can tell (obviously not looking directly at it) it definitely outputs plenty of light in the 254.3nm range just as it is supposed to do. The 11w version is pretty powerful (probably a lot more than I really want, but I had to get what was quickly available) and definitely produces a pretty strong smell. I can't be sure, but it might be letting a bit of the ~185nm range through and producing a bit of ozone. That is actually great for disinfecting, but if it is producing a bit of ozone it might be bad as an active disinfector on something like a fish tank (since it may produce too much in the water for the fish if so.) It may be wise to test thoroughly before using it as an external cleaner or whatever. If the fish are out of the tank and you give it a little while before putting them back in it should be just fine. As a disinfector it's probably great. I won't deny that I don't have the tools to test the exact light output, but the smell alone is a huge giveaway that it is definitely working and is powerful to be producing the effect it is on the air. In fact, I would actually suggest that anyone planning this sort of thing should get the smaller 7W version. Remember, UV-C is very harmful to the eyes and skin, so if anyone is planning to do the same thing it must be enclosed in something or even in another room. This is not a disinfecting wand (and even those should be used with extreme care) and must not be used that way. This is an all out UV-C everywhere light. I do have one nitpick that goes a bit beyond mere nitpick. The cord is very inconvenient. The part of the cord that goes from the mains to the power supply is very short with the power supply way too close to it and very inconvenient to deal with (the on/off switch is obviously on the power supply.) Then, from there, it's still actually a fairly short wire from the PSU to the lamp itself. I think that the power cord to the PSU should not only be longer but should have, in fact, been one of those standard removable cords (which would give people options to swap with a third party one of whatever length they might need.) Even if you're using this in its officially intended way this is likely to be very inconvenient I think. At least the wire from the PSU to the lamp itself is long.

Hoping I can help someone else out who doesn't have a sump and also has a hang over back filter! (mine is an Aqueon one, 10 gal). I went from a suddenly bright green tank with fish gasping for air to a perfectly clean one with no harm to the fish or myself. I was very worried about this light because its cheap, and this sort of light can be really dangerous if handled incorrectly. It CAN blind/kill your fish and its not good for your eyes either if exposed. Its literally the equivalent of looking right into the sun! This is why they sell enclosed ones, but if you're like me you're looking for a cheaper option because those are extremely expensive. I figured out a pretty great set up that worked well and was safe so I'll walk you through: -Firstly, replace about a quarter of the water with treated tank-ready water so that your fish have some fresh oxygen. The algae leeches out the oxygen very quickly and unlike a dangerous algaecide, this UV method takes a bit of time and patience, so you want to make sure your fish are safe and have oxygen during the short term. Try not to replace the water TOO often during this process if at all, but I still had to do it a couple times over the course of two weeks because the algae outburst I had was pretty severe and I needed to make sure my fish could "breathe". Regularly apply a stress coat/water conditioner throughout the process. I use the All-In-One water conditioner in the orange bottle. Test your water often as well. -As other reviewers mentioned (THANK YOU!) you can build a little enclosure for the lamp out of the box it came in. Simply cut a rectangle slightly smaller than the opening of your filter on the narrower side of the box, put the light back inside the box after you've removed all the packaging, and pull the cord out from the side, closing the box. -However, this can still be dangerous if you're doing it on your filter rather than a sump tank, because light can definitely still leak through to your fish due to the shape of the filter once you remove the top due to how close it is to them. What I did, literally using just scotch tape and the ZeeBooth box the package came in, was create a large cardboard flap over the side of the box, and a little extension flap that sits floating over the physical medium part of the filter. The plastic you see I added so that the cardboard doesn't get waterlogged since it's in direct contact with the water. Also from the ZeeBooth packaging -Once you've set it up, turn off your fishtank light and turn on the UV lamp. This way you'll be able to see very clearly if there's any light leaking out of your contraption. If you've done it correctly the tank should be pitch black without any light shining through, but if you peek around the side the blue UV light is still shining directly on the water inside the filter. (if you're worried about looking at it directly, you can wear sunglasses when checking on the light. I did because I'm paranoid) -Once you're sure there's no light leakage, leave it on in periods of 4-8 hrs, but make sure that you do it at a time when you can check on it regularly. A bright hot light near cardboard is not the safest idea, and while I had absolutely no problem at all with it (the cardboard didn't really heat up that much) I don't want to be responsible for someone's house burning down because they left it on during the day then went to work. -As some others have mentioned, this light is most effective if used before the filter rather than after, however, if you don't have a sump or the means to build one, you don't really have much choice. In this case, it will take longer. Some reviewers mentioned that it cleared up completely for them within 2-3 sessions- it took more like 5 or so for me, with the first couple sessions cleaning it to a safe level where I didn't have to worry the fish would die anymore, then the following sessions just for getting the water to a crystal clear level. Really, two days for safety and a week and a half for complete clarity isn't bad at all! Especially since even a water tank change did nothing for my severe outbreak. -As a tip: it really helps to keep the fish tank light off as much as you possibly can during this whole time, as the light encourages algae growth and you don't want to undo your work. This will speed things along considerably. I also took out any tank items and washed them well before (rinse THOROUGHLY!!) and didn't put them back until after I was finished with the light treatment. Also make sure to scrape any physical algae debris off surfaces in your tank as it accumulates, and change the filter before and after the treatment. That was really it! I read so many horror stories about algaecides and then about non enclosed UV lamps that I was EXTREMELY nervous, but it was so easy, building the thing took me less than 10 minutes, and it worked like a charm- my fish tank is way cleaner than it ever was even before the outbreak. I'm probably going to treat...