Review on 🐠 Dr. Aquatics Ammonium Chloride Aquarium Treatment - 022181 by Sheri Zhao

I used this to loop 5 of our 7 tanks. I currently ride a 75 gallon bike and it works. The label directions are accurate (4 drops per gallon or 1 ml per 20 gallons to bring the reservoir to 2 ppm). I double the dose and get exactly 4ppm on my test. Always treat the water added to the tank to remove any ammonia that comes out of the faucet, as this can mess up your calculations. I think that happens to people who have trouble concentrating.