Review on 1-Gallon Kordon #31262 AmQuel - Effective Aquarium Ammonia Detoxifier by Sohini Ledesma

The only way to know if it works is to look at the results. My koi spawn so are my master test results off the charts. Ammonia At 8 ppm the test is green. My water went from green to blue and has been there for 8 days and is still there. Amquel renders ammonia non-toxic to fish, but it is still registered as present in the test kit. At 8ppm plus it should be toxic but my fish are fine and spawning. Even with a 15% water change every day, I have to endure more, but I suck in buckets and water all my plants and grasses and they can't take any more. I will not waste water. All of this is to say that this should work because my koi are still alive. I use the product as directed and add it back to every water change but only for the amount of water that was changed unless they use it consistently then I give the recommended dosage just to be safe. So buy a gallon.