Kusuri Dechlorinator

Kusuri Dechlorinator

Water conditioner and purifier support for safer pond top ups

works almost instantly to remove chlorine, chloramines, and heavy metals from mains water sources. Chlorine can burn fish gills and is highly detrimental to beneficial pond bacteria. Use Kusuri Dechlorinator during water changes, new pond setups, or when moving fish to ensure a safe and healthy environment. It is safe for use at any water temperature and suitable for transport bags, isolation tanks, or direct pond application.

Removes Harmful Chemicals & Metals Protects fish and pond ecosystem during water changes.

Kusuri Dechlorinator is most useful when new tap water, top-up water or a sudden contamination risk needs to be made safer for fish and filter bacteria. Chlorine and chloramine can damage fish gills and biological filtration, while heavy metals or source water impurities can add extra stress. For large water changes, always match the purifier or dechlorinator capacity to the amount of water being added.

Kusuri medicine guidance emphasises accurate pond volume calculation, premixing treatments in pond water and maintaining strong aeration during medication. Their FAQ gives exact treatment intervals and dosage for several key medicines, so the manufacturer label should always be treated as the authority.

Top-up and water change guidance

Use Kusuri Dechlorinator before untreated source water can affect fish or biological filtration. New water should be added at a sensible rate, especially on koi ponds, so temperature, pH and chlorine/chloramine changes do not shock the system. For purifier cartridges or carbon units, replace media when capacity is reached rather than relying on old exhausted material.

Key benefits

• Helps make new tap water safer before it enters the pond
• Supports fish and biological filtration during water changes or top ups
• Useful when chlorine, chloramine, heavy metals or source water contaminants are a concern
• Helps reduce stress caused by untreated mains water
• Important for koi ponds and systems receiving regular water changes
• Works best when matched to the volume of water being added

Technical information

• Brand: Kusuri
• Treatment type: Dechlorination and water purification
• Product form: Inline unit / purifier
• Target issue: chloramine, Chlorine, tap water contaminants and heavy metals
• Best use: Year round / Water changes
• Size: 1 Litre, 250ml, 5 Litre, 500ml
• Dosage / capacity guidance: Dosage guidance: 10 ml per 100 gallons
• Important note: Match treatment or purifier capacity to the amount of new water being added

How to use safely

The product label should always take priority over general guidance. The points below are included to help customers use Kusuri Dechlorinator in a more careful and informed way.

• Dose or size the purifier for the amount of new water being added, not just the total pond size.
• Run new tap water slowly through purifier units to maximise contact time.
• Replace cartridges, carbon or media when exhausted rather than relying on old media.
• Check chlorine or chloramine if fish show stress after a water change.
• Do not assume untreated tap water is safe for koi or filter bacteria.
• Keep purifier equipment clean and protected from frost where relevant.

Helpful related products and advice

Use these links to compare similar products in the same range or choose supporting testing, purifier or maintenance products where relevant.

• Kusuri 30 Formalin-Malachite Premix
• Kusuri Acriflavine
• Kusuri Acriflavine and Malachite Premix
• Kusuri Anti-Bac
• Kusuri Biobalance
• Browse pond treatments
• Browse pond water testing
• Evolution Aqua Detox Dechlorinator 12 Inch
• ultimate guide to koi health
• guide to maintaining ideal pond water conditions

Related treatment options

For similar pond treatments, compare Tap Water Conditioners & Dechlorinators, Microbe-Lift AQUA XTREME, NT Labs Chlor – Go. These links are included to help you choose the right product for the same type of pond problem, rather than as random add-ons.