DrTim's Aquatics Ammonium chloride for Aquarium
Ammonium chloride in an easy to use dropper bottle for fishless cycling. Add 1 drop of solution per-gallon of water for an ammonia-nitrogen concentration of 2ppm (2mg/l). When cycling do not let the ammonia nor nitrite get above 5pmm as nitrogen. Monitor cycling progress with ammonia, nitrite and ph test kits. Never add to aquaria that contain fish, invertebrates or corals.