Knock Out Household Ammonia, 500 ml

Reviews

Buyer

It worked! Guess what! I now have a fully cycled tank with happy mountain minnows and me and the fish couldn't be happier 😊 I did worry at first if knockout ammonia was safe for fishless cycling, however it was recommended to me by more experienced fish keepers. Very easy to use.

FlyBird

5, I then spent the following week or so adding smaller amounts of this ammonia, testing after 24 hours, only increasing the dose when ammonia was 0 and nitrite either 0 or very close to. Only a small amount in water needed.

Mia

! I continued until I reached my original dose amount. Worked great along with a sensor. My tank holds 145 liters of water, at first I assumed the strength was 7% but I ended up overdosing it and had to do a waterchange to bring the initial ammonia level down to around 3 or 4ppm.

Lucy Waters

If using API test kit make sure to check before you shake, if the bottom of the test tube turns purple this is because the nitrite has become so high the test can't detect it and when shaken can appear lower when in fact it's not. The unreadably high nitrite turned NT labs tests almost red.

Anyways to solve the nitrite spike I did 3 very large water changes until nitrite was around 0. I am so pleased with this ammonia, much cheaper than aquarium specific ammonia used for a fishless cycle and just as good!

Lasts ages. Good for stain removal and odor in laundry, I use it in a spray bottle to spot treat affected areas.

25 to 0. From here on in I assumed this was the full 9. I'm glad I got it because it's affordable and effective.