Review on 🐠 100% Natural Aquarium Treatment for Fishless Cycling – Chlorine-Free, Ammonium Chloride Fish Tank Cleaner for Freshwater, Saltwater, and Reef Aquariums by Dr. Tim’s Aquatics by Aretha May

Product label does not match image here on Revain. It was stated that I would need 4 drops per gallon or 1ml per 20 gallons for 2ppm - these are NOT equivalent ratios (20 drops = 1ml). In fact, the correct dosage was 1 ml/20 gallons (or 1 drop/gallon as currently posted on Revain). Problems could have been avoided if the ammonia concentration had been stated on the bottle. If you don't have your own eyedropper, you can place 1/4 teaspoon (1.25mL) in a measuring cup, add water, and add your desired dose to a measuring cup. Percentage of the measuring cup (e.g. 40% to achieve 2 ppm in a 10 gallon tank, 80% to achieve 4 ppm).