Dr. Tim's Ammonium Chloride Solution

The Safe, Precise, and Odorless Solution for Fishless Aquarium Cycling

​Are you setting up a new aquarium? Traditional "fish-in" tank cycling can expose your new livestock to lethal chemical burns. On the other hand, dropping raw fish food or cocktail shrimp into the water creates an unpredictable, foul-smelling mess.

​Dr. Tim's Ammonium Chloride Solution provides a pure, medical-grade, and completely odorless source of ammonia designed specifically for fishless cycling. By pairing this precision liquid with a beneficial bacteria starter, you can customize your biological filtration and completely cycle your new tank without exposing any fish to harmful water conditions.

​Key Features & Benefits

​Precision-Engineered Concentration: Formulated at a precise concentration where 4 drops per gallon of water will yield an exact ammonia concentration of 2.0 mg/L (ppm). This eliminates the dangerous guesswork of using household ammonia.

​100% Fish-Safe Cycling: Allows you to grow massive colonies of Nitrosomonas and Nitrobacter beneficial bacteria safely before adding sensitive fish or corals to the environment.

​Odorless and Pure: Free of the fragrances, surfactants, and toxic heavy metals commonly found in grocery store cleaning ammonia. It leaves behind no oily films or residues.

​Universally Compatible: Fully suitable for setting up all new aquatic environments, including freshwater community tanks, African cichlid setups, marine fish-only systems, and delicate reef aquariums.

Step-by-Step Fishless Cycling Dosing Guide
​To successfully cycle your tank, use this product in conjunction with a reliable ammonia/nitrite test kit and a live bacteria starter (such as Dr. Tim's One & Only):

Add Live Bacteria and Initial Ammonia
Day 1
Shake your live nitrifying bacteria well and pour it directly into the aquarium. Immediately add 4 drops of Dr. Tim's Ammonium Chloride per gallon of water to bring your total ammonia level up to 2.0 ppm.
2
Monitor Chemical Transition
Days 2 to 5
Test your water daily. You should see the ammonia levels begin to drop while nitrite levels slowly begin to rise, confirming that the first stage of your biological filter is active.
3
Re-Dose Ammonia Sparingly
When Ammonia Hits 0–0.5 ppm
Once your initial ammonia drops near zero, add another half-dose (2 drops per gallon). Crucial rule: Never let total ammonia exceed 5.0 ppm, or you will accidentally stall and kill off your beneficial bacteria colonies.
4
Confirm a Complete Cycle
Final Verification
Your tank is fully cycled when it can completely process 2.0 ppm of ammonia down to 0 ppm of ammonia and 0 ppm of nitrite within a single 24-hour period. Once achieved, perform a 30% water change to lower accumulated nitrates, and you are ready to safely introduce livestock!