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

I ordered this product in April 2021 and had to have it replaced because it expired in 2020. The second, replacement bottle, also came as expired.

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.

NOT AS GOOD AS SOME OTHERS

The product might be good normally. But currently, March 2016, they are shipping a product that is almost two years past its expiration date.

This product like most others of this type does not speed the cycle process up at all in my experiance . I have been in hobby for 30+ years and set many tanks up in that time .nothing but time has worked for me

GOOD

I use this product every time I do a water change, the results are good and I am able to keep my tank cycled even without a fish load.

Impressed with the quickness of ridding new tank syndrome, not a single loss after 3 days.

I use this on all my aquariums

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.