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Koi Doc Peroxide Oxygen Booster & Cleaner Perfect Pond Water TreatmentKoi Doc Koi Doc Peroxide is a powerful water treatment designed to help maintain clean, healthy pond conditions by breaking down organic waste and improving oxygen availability. Peroxide is often used increase oxygen levels in an emergency and neutralise potassium permangenate after parasite treatment.
It works by releasing active oxygen into the water, helping to reduce the build-up of sludge, uneaten food, and other organic debris that can affect water quality. Regular use supports a cleaner pond environment, improves water clarity, which helps to maintain optimal conditions for fish, plants, and beneficial microorganisms.
Breaks Down Organic Waste
Koi Doc peroxide helps break down organic matter such as sludge, uneaten food, and debris that accumulate over time, supporting a cleaner pond and reducing the build-up of waste that can affect water quality.
Boosts Oxygen Levels
Releases active oxygen into the water, helping improve oxygen availability and supporting a healthier aquatic environment for fish, plants, and beneficial microorganisms.
Fast Acting Treatment
Works quickly once applied, delivering rapid results in improving water conditions, increasing oxygen levels and breaking down organic material for more immediate pond care benefits. Highly effective oxygenator often used during emergencies such as a power outage, pump failure, or low oxygen levels.
Improves Water Clarity
Supports clearer water by reducing suspended organic particles, including uneaten food, controlling string algae helping maintain a cleaner, more visually appealing pond environment.
Multi Season Use
Koi Doc peroxide treatment can be used most of the year but ideally should be used when water temperatures are between 10°C and 21°C. It can be used outside of this range but avoid using in hot and humid weather and very cold weather.
Supports Biological Balance
Koi Doc peroxide encourages a healthier pond ecosystem by improving conditions for beneficial bacteria and microorganisms, helping natural biological processes function more efficiently.
Safe When Used as Directed
Formulated for controlled use in ornamental ponds. Suitable for fish, plants, and filtration systems when applied according to recommended guidelines, doses and temperatures. DO NOT OVERDOSE.Dosage: 25g of Peroxide is sufficient to treat approximately 1,000 litres of pond water. Apply as required to maintain clean and healthy water conditions. Do not exceed recommended dosage.
Instructions: Temporarily turn off UV clarifiers. Dissolve the required amount in a bucket of pond water and distribute evenly across the pond surface. Apply in areas of good water circulation. Avoid direct contact with fish during application. Keep aeration on during treatment.
Not for human use. Keep out of reach of children and store sealed in a cool, dry place.
Temperature Guidlines for use to treat parasites, algae and as a cleaner;
Cooler Water 10°C – 15°C: Safer for treating parasites or cleaning, as oxygen solubility in the water is higher. However, treatments may take slightly longer to work.
Moderate Water 15°C: – 21°C: Best for treating string algae and blanket weed. At these temperatures, peroxide breaks down into water and oxygen very quickly.
Warm Water 24°C: Use extreme caution. Warm water holds less dissolved oxygen, and treating large quantities of algae can cause a massive die-off event that rapidly removes oxygen from the water, potentially suffocating your fish.About Koi Doc Koi RangeKoi Doc by Queni Koi Southern provides a select range of premium quality water treatments that are as good as the market leaders at a far more competitive price.All of these products have been extensively tested and manufactured to the highest standards to ensure you have water treatments that are safe to use, provide the best in class results that are safe and trusted. In many cases our prices are under half that of the equivalent products from other brands with similar, the same or better results.All of our koi including dozens of show winners supplied by Queni Koi over the years have been kept in waters treated with the Koi Doc range of products. The well established Koi Doc range of water treatments are trusted by thousands of koi keepers who return time after time to ensure the water their koi are kept in is well balanced and optimum conditions to allow their koi to thrive.Only the highest quality materials have been used in the manufacture of these water treatments to ensure the best possible results giving your koi the best possible chance to live a healthy and long life. Koi Doc water treatments are of the highest quality, trusted, proven over years of customer use and value for money.



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What types of products do you offer?
At Queni Koi Southern, we provide a curated selection of high-quality pond supplies and premium koi food. Our products include innovative items like the Sinking Air Line for seamless pond aeration and advanced koi food such as the JPD Shogun, designed to enhance the health and vibrancy of your koi.
How can I ensure the well-being of my koi?
To promote the well-being of your koi, it's essential to provide them with high-quality food and maintain a healthy pond environment. Our expertly formulated koi food under the trademarked brand Kenko Koi food and our pond supplies are designed to support the health and vibrancy of your aquatic life, ensuring your pond remains a thriving ecosystem.
What is your shipping policy?
We pride ourselves on prompt delivery! We offer free next working day delivery on orders over £100, and we use trusted carriers to ensure your products arrive safely and on time. For more details, please check our shipping policy on our website.
What should I do if I receive a damaged or incorrect product?
If you receive a damaged or incorrect product, please contact us at orders@queni-koi.co.uk as soon as possible. We will replace the product free of charge and cover the return shipping costs for the incorrect or damaged item.
Can I return koi or specially made products?
Unfortunately, once koi have left our premises, we cannot accept any responsibility for them, and they cannot be returned. Additionally, specially made products, such as custom filtration systems, can only be returned if they are faulty or damaged.
How do I cancel my order?
If you wish to cancel your order, you can do so within 14 days of receiving your products. Please contact us at orders@queni-koi.co.uk for authorization.
What is your refund policy?
We will refund all sums paid by you if the items are returned in the condition they were sent. Please allow up to 3-5 days for us to process your return once we receive the items back.
How can I contact customer support?
You can reach our customer support team by emailing us at sales@queni-koi.co.uk or by calling us at 0116 2677053. We're here to help!



