MICROBE-LIFT Algaway 5.4 Algae Remover for Aquariums, Algaecide for Freshwater and Saltwater Tanks, Aquarium Algae Control and Fish Tank Cleaner, Safe for Fish and Plants, 8 Ounces (ALGAA08)

Awesome system. Easy to install and use. Lives up to its advertised performance. I installed mine in a 20-gallon freshwater tank that had a persistent green water problem because I had to set it up in a spot that gets a lot of Florida sun. I tried several algae fix solutions and daily water changes to solve the problem. All to no avail. Then I bought this UV filter. In two days of use, I had crystal clear water. My fish seem to like the device too. The male betta has chosen the top of the filter as his favorite perch. the pleco catfish cleans the intake grate. I recommend this filter without reservation.

THIS IS MAGIC!! My tank was green and really cloudy i couldn’t even see my fish but in under 24 hours this stuff made my tank CRYSTAL clear

Worked good, just takes a few days before you see it working. And DO NOT over do it.This stuff is strong and if you put to much in, you could have harsh effects.None of my fish have died (plecos and flowerhorns)

Unlike others that have tricked themselves into thinking this works the fact is, tested both under laboratory conditions and in an actual pond exactly according to the directions, it did absolutely nothing. I repeated it over and over, then doubled the dose. Zero. No change in the clarity of the water, zero reduction of algae. Period. In ten days. Go ahead, give them another sale they appear desperate to generate an income. Note for those that think it worked. 1) Because you did "something else" at the same time as you poured this water into your fish tank your opinion of the product is rendered useless.So what you see in the reviews is people that *also* either shut all light from reaching the water for several days, or flushed a sand filter, or did a water change, or changed a filter, or covered the pond with vegetation, or it was cloudy, or any of a dozen other things over ten days that can/could/would reduce algae (including simply time passing) THEN attributed it to the chemical when they finally saw a result. I never achieved the slightest result in the laboratory either, diluted to the level they recommend and tracking a dozen test tubes day after day, the algae either increased or remained unchanged.

I will absolutely say that this product does what it claims; it clears up the algae (my five gallon betta tank gets ridiculously green no matter what light sources and how much cleaning I use). However, something to keep in mind if you have a smaller tank is that this product and its included measuring cup-- which is really nice, much better than measuring in drops in the top of the cap! -- really is set up for larger setups, and this product WILL harm your fish if you overdose.I think the product is great for clearing a fishless tank or if you have a larger (20 gallon or more) setup. If you have a smaller setup, like I do, I would keep a look around for other products.

After less than 24 hours the algae bloom in my tank is completely gone after fighting it for several weeks. Some of the reviews mentioned their fish dying when following the reccommended dosage. I chose to therefore decrease the amount for my tank slightly from the recommended 5mL/60 gal to 4mL/75 gal. I also made sure to add it next to the filter when no fish were too close.

Works very fast on fluffy green algae that floats around. Doesn't work on fuzzy algae growing on plants. Also, be careful about shaking the bottle -- It seems the lid isn't that tight, and I got it all over my hands, which is scary after reading the safety info on the bottle. And if you have a tank smaller than 30 gallon, you will need a dropper of some kind.According to my AI source, the active ingredient, Poly (oxyethylene) (dimethylimino) ethylene (dimethylimino) ethylene dichloride, is a cationic polymeric algaecide used to control algae growth in swimming pools and ponds. It is effective against both free-floating green algae and black algae that cling to surfaces. Unlike copper-based algaecides, it does not bioaccumulate and is considered more eco-friendly.I still need something that will kill my fuzz algae.

Cleared tank in a matter of hours. I was shocked. As soon as it came today I put 18 drops in my tank as directed. I came back a couple hours later and water was clear and algae and green water was gone. My tank never looked so good.....I can see the fish! Well worth the money and it really wasn't expensive. The bottle will last me at least a year.