Dr. Tim's Aquatics Ammonium Chloride Solution for Cycling Aquariums is a reagent-grade ammonium chloride for use during fish-less cycling. With a concentration of 50 mg/L of total ammonia-nitrogen (TAN), a single drop is all you need for every gallon of aquarium water.
Reagent-grade ammonium chloride for use during fish-less cycling.
50 mg/L of total ammonia-nitrogen (TAN) concentration.
Pre diluted ammonium chloride makes fish-less cycling easy and establishes aquarium biological filtration.
Concentrated ammonium chloride solution treats up to 1,200 gallons. The pre-measured formula is easy to use; 4 drops per-gallon equals 2 ppm ammonia-nitrogen.
Does not contain scents or other dangerous additives.
Add 4 drops of solution per gallon of aquarium water to achieve an ammonia-nitrogen (NH3-N) concentration of 2 mg/L-N (2 ppm). Do not exceed 5 mg/L-NH3-N or NO2-N in the aquarium during cycling. Use an ammonia test kit to monitor your progress. 1 drop equals 0.05 ml so this bottle will treat 300 gallons.
Does this bottle have an expiration date or does it never expire ?
Yes. We recommend adding ammonia 3 times during the fishless cycling period and a 2 ounce bottle is enough to dose a 100 gallon aquarium 3 times. So plenty to cycle your 36 gallon tank.
Does this solution contain chlorine? The label says it's NH3-N but name is Ammonium chloride.
The product is ammonium chloride dissolved in pure water. It does not have any chlorine in it. The ammonia is measured in units of NH3-N
This is great for cycling aquariums. It's cleaner than fish food and more humane than cycling with fish, and much faster than both. It will also prepare your tank for a much larger bio load than fish food or a fish in cycle. It's much easier and safer to use than ammonia you can buy at hardware stores.
on Jul 27, 2018Top 500 Contributor
This was my first time starting an aquarium with actual ammonia. I fish-in cycled my first tank years ago and had always used media from that to seed. I had two small tanks I wanted to start up from scratch, and was very happy to see that Chewy carried this product, so I could get it at the same time I picked up other needed supplies. One tank was cycled and done in only a week, the other took three weeks. Love that it comes in a dropper bottle for easy dosing! It was easy to hit the 2.0ppm target.
on Sep 19, 2018
Worked 1000x better than the 10% ammonia solution that I bought prior to using this. I will absolutely use this again for my fishless cycles.
Good source of ammonia
on Nov 9, 2018
Followed dosage instructions and tested the tank. The correct amount of ammonia was present.
GREAT CYCLING PRODUCT
on Jul 16, 2018
This item was very helpful in cycling my aquarium.
came in quickly
on Jun 9, 2018
can't wait to use it. A+++++++. gonna use it for a new tank
Directions are wrong!
on Dec 27, 2017
The directions on the bottle are wrong. It says 4 drops per gallon. It should say ONE drop per gallon. I had to dump my entire tank and start over becasue the ammonia was so high. Very disappointed in this product.
on Dec 30, 2016
Everything came in quickly. 2 days over 50 bucks. Always use chewy. Just wish they had more.