Ammonium Chloride (NH4Cl)

Controlled ammonia for safe, fishless cycling

Ammonium Chloride supplies a clean, measurable ammonia source—allowing biofilters to be commissioned without risking livestock. This controlled approach delivers predictable, repeatable results.

Ideal for:

• Fishless cycling

• Biofilter capacity testing

• Commissioning new or upgraded systems

Typical Application

• Dissolve fully before adding to system water

• Dose incrementally, allowing full conversion before re-dosing

Indicative Dosage

• Target low, controlled TAN levels (commonly 1–2 mg/L during cycling)

• Re-dose only once ammonia and nitrite are being efficiently converted

Important Notes

• Best used without fish present

• Monitor ammonia and nitrite closely

• Maintain strong aeration

Critical Safety Information

• Ammonia Chloride is toxic to aquatic livestock at high enough quantities
• Not intended for routine use in stocked systems
• Use only with appropriate expertise
• Maintain buffering capacity (alkalinity (kH) above 60ppm)

Best used with:
NMI+, Bloom, Sodium Nitrite and Carbonate Hardness Increaser – (kH) Generator