Dr. Tim's Ammonium Chloride for Fishless Cycling 4oz

Dr Tim's Ammonium Chloride Solution is recommended for use in freshly set up, uncycled tanks. It works by providing the Ammonia needed by the nitrifying bacteria to establish itself in a fishless cycle. Simply add a couple drops per gallon to raise ammonia-nitrogen concentration. Be sure to test your water regularly to ensure that it's safe when you're ready to add fish.

If water paramaters don't improve, you may need to use a live culture of Nitrifying Bacteria in conjecture with this product.

One 4 oz bottle cycles 200 gallons.