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

This product is super easy to use and gets the job done. I was in a tough situation with a fish and needed a tank cycled fast. It has been 6+ months and my betta is happier than ever!

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?

This is amazing. I bought other products to cycle my tank and was never successful in doing so. I used products such as special blend and more extreme nitifying bacteria products and was never successful. I was doing constant testing of my freshwater tank to see when is the final date for my tank nitrogen cycle, and after a month still had no success with the previous products. I bought this product and within two days my tank started the cycle. Its now been a month and my tank is great. I strongly recommend this product. Fluval is the greatest.

Bought two bottles and empty them both into my sump for my 125 gal. A month and a half later, ammonia is still reading at 4 ppm.

Great product already used for years, very good and reliable

Fast shipping, and this product is awesome in that it doesnt have an odor and is more effective in boosting bacteria.

I believe Fluval makes the best cannister and fish filters and I trust this brand and no complaints; I have used this to coat booster the beneficial bacteria along with the plant booster and water conditioner.

Hear me now..., believe me later... you need this now.

Great product works as promised

I add this but it seems like these products never really do anything extra for fish tanks.