Fluval Cycle Biological Enhancer, Aquarium Water Treatment, 16.9 Oz., A8351

(681 Reviews)

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$16.78

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(50000 available )

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370 Ratings
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Reviews
  • Marc

    > 3 day

    Ok I know how the nitrogen cycle works but this stuff makes it really hard to know the progression of your cycle. I have been trying to cycle a tank for over a month with nothing to show for it . I have had been constantly reading .5 ppm of ammonia, 0 nitrites and 0 nitrates, with a handful of fish ( been using prime to keep the fish health dont worry) . So I decided to try help the cycle along and buy a bottle of this stuff. 24 hours after the first does, I tested again .5 ppm ammonia, 0 nitrites, and 5 ppm nitrates, I was like wow this is way too fast to have nitrates and made no sense that I still have 0 nitrites. Tested after 2nd day dosing. almost same thing .5 ppm, 0 nitrites, and maybe 7or8 ppm nitrates. Still didnt make sense. Cant get nitrates without nitrites and have never registered even the slightest amount of nitrite in my tank since day 1. So it got me thinking that the nitrates must be coming from the bottle of Fluval. I took about 10 drops of it and mixed it in about 50 mls of fresh tap water which I tested first and was nitrate free. When I tested this mixture, it took all of about 30 seconds for the nitrate test to go off the scale. So my nitrate reading in my tank is really from adding this stuff. That makes it difficult to follow the progress of my cycle when I am introducing nitrates into my tank.

  • Jaime Miller

    Greater than one week

    Recommended. Great for any new tank to set up the cycling.

  • jdsjr

    Greater than one week

    Exactly what it was advertised to be. Works great! My fish are happy, and so am I.

  • TJ Coelho

    Greater than one week

    Much cheaper than buying small bottles. Helped clear up the Koi pond.

  • richard ouellette

    > 3 day

    great

  • David

    > 3 day

    GOOD

  • Nick Edwards

    > 3 day

    After using this product All 25 fish in my tank died. My tank had been established for 18 months. I did a 25 % water change, added this product with some water conditioner and all my fish died over a period of 3-4 days. Most of my fish had been in the tank for well over a year and were doing fine. I trusted information I obtained over the internet which included the use of this product. I had a beautiful 75 gallon tank with lots of happy fish. My tank is void of fish now. I will take a break from the fish tank for now, regroup and re start and establish the tank with new fish after I recover from the grief of losing all my fish.

  • Matthew Potts

    > 3 day

    Awesome product!!

  • Miss Marguerite Ratke

    > 3 day

    Works as described, essential bacteria controls ammonia in fish tank. Add every water change. I would like to know what bacteria species are being used?

  • Jenner Cramer

    > 3 day

    it works pretty well to keep the ammonia down. But Im not sure it has any lasting effects. You would have to keep using it long term and my understanding was it was suppose to help my beneficial bacteria grow.

Fluval Cycle Biological Enhancer is a responsive biological aquarium supplement that ensures that all aquariums are immediately inoculated with a powerful team of beneficial bacteria, providing a safe biological habitat for your fish. These highly effective micro-organisms will create a biological flora that quickly metabolizes lethal ammonia and nitrite and allow for the immediate introduction of fish. Fluval Biological Enhancer goes to work fast, releasing massive amounts of beneficial bacteria that eliminate toxic ammonia and nitrite to establish a biologically-balanced aquarium. Fluval Biological Enhancer is strongly recommended for new aquarium set-ups and regular application will help to exclude the establishment of undesirable bacteria in aquariums.

For more fish tank accessories, check out other Fluval products including aquarium filters, aquarium heaters, aquarium air pumps, aquarium lights, aquarium rocks, aquarium thermometers, and aquarium stands. Fluval has a wide variety of products that are perfect for your pet fish to enjoy in any large fish tank, small fish tank, saltwater tank or freshwater tank. Fluval broke onto the aquatic scene in 1975 by introducing the world’s first 3-stage filter with synchronous motor technology – a breakthrough that is still applied in the industry today. Since then, Fluval has built a legacy around this pioneering spirit, relentlessly adapting in a changing world to launch innovative aquarium products that remain at the forefront of technology, and which set the bar in quality, style and functionality. Fluval’s mission is not just about building products that mimic the natural world, but inspiring aquarists of all skill levels to enjoy and respect the hobby for generations to come.

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