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

Best treatment for fish tanks. I used this to start my saltwater tanks cycle. I was able to add fish three weeks after. I haven’t lost any fish since staying to use this product. I use it in all 5 tanks I have for weekly maintenance. Highly recommend

Works good

No issues yet

This was a very good . Would buy again

Good deal

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.

Great product

This is a great produc but MAKE SURE YOU SHAKE THR BOTTLE 1st! The live bacteria settles to the bottom. This isnt a miracle bottle that cycles your tank in a day or two you still NEED to check your water to see if the cycle is complete. This bottle jump starts things by adding good bacteria which needs to grow on all of the surfaces. The growth still takes time. You know youre fully cycled when the good bacteria eats the added ammonia in 24hrs. If you pour this in and add fish straight away your stressing the fish because they are still riding through the cycle until the bacteria makes its home in your tank to eat ammonia and nitrite. If your fish made it, youre only lucky and this bottle only shortened the stress period. I recommend this product to speed things up, but do yourself a favor and buy the API master test kit as well so youre not swimming blind. :)

My fish are still alive. That’s nice.

I have a fish tank that has been set up for years that turned green. I was using products from another company for years, but they did nothing. This made a difference along with another product from the same company.