DrTim's Aquatics Ammonium Chloride Aquarium Solution, 237 ml for Fishless Cycling

DrTim's Aquatics Ammonium Chloride is an 8 oz aquarium solution for fishless cycling in freshwater, saltwater and reef aquariums, with a chlorine-free formula and a four-drops-per-gallon dose.

• 8 oz of ammonium chloride solution — for preparing aquarium water during fishless cycling.
• Four drops per gallon — a measured dose for aquarium use.
• Chlorine-free fishless cycling treatment — made for new aquaria or cycling water when fish and coral are absent.
• For freshwater, saltwater and reef aquariums — covers multiple aquarium types.
• 100% natural, eco-friendly formula without sulfur or offensive odors — avoids those ingredients and smells during use.

Starting a new aquarium involves preparing its water before introducing fish or coral. This ammonium chloride solution is intended for that fishless cycling stage, offering a way to condition aquarium water without animals present. It is also designed for aquarists cycling water as part of aquarium setup and maintenance.

How does DrTim's Aquatics Ammonium Chloride support fishless cycling?

Use the solution as part of a fishless cycle, with no fish or coral in the aquarium during treatment. When paired with DrTim's Aquatics One & Only, it is designed to help create a biological filter that naturally removes nitrite and toxic ammonia. The combination is also intended to help address new tank syndrome.

• Designed for cycling new aquaria as well as aquarium water.
• The paired approach uses ammonium chloride with One & Only.

What aquarium types can use this solution?

DrTim's Aquatics Ammonium Chloride is for freshwater, saltwater and reef aquariums. Its fishless-cycling use is suited to preparing a new tank or cycling water before fish or coral are present; it is not intended for treatment while those animals are in the aquarium.

• Suitable aquarium settings include freshwater and marine systems.
• Fish and coral must be absent during the fishless cycle.

What is the dose, and what is the formula like?

Use four drops per gallon of aquarium water. The solution is described as 100% natural and eco-friendly, and its formula does not contain sulfur or produce offensive odors. The 8 oz size provides the product in a single bottle for aquarium cycling use.

• Made without chlorine as a fishless-cycling treatment.
• DrTim's Aquatics draws on years of marine biology experience; its aquarium products are used by professional and residential aquarists and are developed using scientific evidence and research.

This solution is suited to aquarium keepers preparing freshwater, saltwater or reef systems through fishless cycling, particularly when using it alongside One & Only for biological filtration. It is intended for cycling water without fish or coral present, with a four-drops-per-gallon dose.