Understanding and Using Active Oxygen for a Healthy Pool

Oxygen is an essential element for the health of any pond. It plays a fundamental role in water quality, biological functioning, and the survival of aquatic organisms.

A well-oxygenated pond promotes a balanced ecosystem where plants, fish, and microorganisms coexist harmoniously. However, during hot periods or in ponds heavily loaded with organic waste, the level of dissolved oxygen can quickly drop.

This lack of oxygen often leads to the proliferation of unwanted algae, accumulation of sludge, and endangers the health of fish which can suffer from stress or even mortality.

This is where active oxygen comes in: a natural and powerful solution that releases oxygen directly into the water.

Used regularly, active oxygen helps to effectively break down organic matter and to restore a healthy and clear environment, without resorting to harsh chemicals.

SUBSCRIPTION (SHOPIFY)

1. What is active oxygen?

— Chemical and natural definition

Active oxygen, also called hydrogen peroxide or stabilized active oxygen depending on the formulations, is a form of oxygen with strong oxidizing power. 

Naturally present in the environment, it is released in the form of molecules capable of quickly reacting with organic matter and pollutants in the water.

— How active oxygen works in water: oxidation principle

In a pond, active oxygen acts through an oxidation mechanism: it breaks down organic waste such as sludge, filamentous algae, food residues, or other pollutants. 

This reaction produces water and dioxygen, thus helping to increase the dissolved oxygen level in the water, beneficial for aquatic fauna and bacteria useful to the biological filter.

— Difference between dissolved oxygen and active oxygen

It is important to distinguish dissolved oxygen from active oxygen:

• Dissolved oxygen is the molecular oxygen (O₂) naturally present in water, essential for the respiration of fish and microorganisms.
• Active oxygen is a reactive form of oxygen that temporarily acts to clean and purify the water by oxidizing impurities.

— Advantages compared to traditional chemical treatments

Compared to traditional chemical treatments often based on copper or other toxic substances, active oxygen offers several major advantages:

▪ Safe for fish, plants, and essential bacteria.
▪ Leaves no harmful residue in the water or sediments.
▪ Fast and targeted action, without permanently disturbing the ecosystem.
▪ Natural solution that respects the biological balance of the pond.

In summary, active oxygen is a modern and ecological method to improve water quality, promote waste degradation, and preserve the health of your pond.

How to perform a water analysis of my pond or basin?

To maintain a healthy and balanced pond, it is essential to know the quality of its water. This article guides you step by step to perform an accurate water analysis, understand the results, and thus act effectively to prevent algae, sludge, and imbalances.

READ THE ARTICLE

2. The benefits of active oxygen for your pond

— Dissolution and degradation of sludge and organic waste

Active oxygen effectively acts on deposits of sludge, decomposing leaves, and other organic matter accumulated at the bottom of the pond. By oxidizing this waste, it breaks it down into finer particles, easy to remove by filtration or to degrade by natural bacteria.

Result: a cleaner pond bottom and a healthier environment.

— Limitation and control of algae (especially filamentous)

By disrupting the cellular structure of algae, active oxygen limits their proliferation, especially filamentous algae that often suffocate plants and fish. This preventive and curative treatment avoids imbalances related to excessive photosynthesis and nighttime oxygen consumption by these invasive plants.

— Improvement of water quality and clarity

The oxidizing action of active oxygen neutralizes fine particles and suspended matter responsible for cloudy water.

Within a few hours, the water regains a clear and more pleasant appearance to look at, while offering better living comfort for aquatic wildlife.

— Stimulation of beneficial bacterial activity and biological filtration

By increasing the available oxygen level, active oxygen promotes the work of nitrifying bacteria present in the biological filter.

These microorganisms play a key role in breaking down ammonia and nitrites, toxic substances for fish. Better oxygenation therefore means more effective filtration.

— Direct oxygen supply for aquatic wildlife (fish, plants)

Beyond its cleaning properties, active oxygen directly enriches the water with dioxygen, essential for fish respiration and aquatic plant photosynthesis.

This rapid action is especially useful during heat waves, when dissolved oxygen drops dangerously.

3. When and how to use active oxygen?

— Situations suitable for its use

Active oxygen is particularly recommended when your pond faces:

• A high organic load (accumulation of leaves, fish waste, thick sludge).
• An algae invasion, especially filamentous algae.
• Cloudy water, loaded with fine particles.
• Periods of intense heat causing a drop in dissolved oxygen.

It is also useful after heavy treatments or when introducing new fish to stabilize the environment.

— Recommended frequency and dosage

For maintenance, a weekly or biweekly application is usually sufficient to keep a pond clean and balanced.

In case of an acute problem (green water, invasive algae), an initial treatment can be carried out, followed by a return to a maintenance schedule.

Dosages vary depending on the products: it is essential to follow the manufacturer's recommendations to avoid any imbalance.

— Application tips

Active oxygen often comes in powder form to be diluted or dispersed directly on the pond surface.

• Best time: early morning or late afternoon, when water temperature is lower and oxygen is better preserved.
• Method: spread evenly over the surface or in the most congested areas.
• Precautions: avoid overdosing, do not apply in very windy weather to prevent product loss.

— Compatibility with other treatments and equipment

Active oxygen is generally compatible with air pumps, biological filters, and most natural treatments.

However, it is best to avoid combining it immediately with strong chemicals (copper, formalin, etc.) that could interact negatively.

Used in synergy with good filtration and mechanical aeration, it optimizes water balance.

4. Discover our active oxygen collection for a healthy and clear pond

— BiOx – Powerful cleaning by Colombo

Available in 1000 ml (32,000 L), 2500 ml (80,000 L), and 5000 ml (160,000 L), BiOx is an effective treatment that immediately releases active oxygen upon contact with water.

BiOx 1000ml - Colombo

Active oxygen for pond cleaning – Treats up to 32,000 liters

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• Ideal for: rapid sludge decomposition, limiting filamentous algae.
• Highlights: fast action, improved water clarity, safe for wildlife and plants.

— Oxypond – Algaecide treatment by AquaForte

Available in 1 kg, 2.5 kg, and 5 kg, Oxypond specifically targets algae and organic deposits.

• Ideal for: ponds affected by algae invasion or greenish water.
• Highlights: easy to apply, visible effectiveness within hours, eco-friendly formulation.

Oxypond 2.5kg - AquaForte

Powerful algaecide based on active oxygen – For medium to large ponds

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— JBL SediEx Pond – Bacteria and active oxygen for sludge breakdown

Available in 250 g and 1 kg, SediEx Pond combines active oxygen and bacterial strains for deep maintenance.

• Ideal for: improving the health of the biological filter and reducing accumulated sludge.
• Key points: dual action (chemical and biological), excellent for regular maintenance of filtered ponds.

JBL SediEx Pond 1kg

Solution combining bacteria and active oxygen – Eliminates organic deposits

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— How to choose the right product?

• Small pond or regular maintenance: opt for a smaller size (BiOx 1000 ml, Oxypond 1 kg, SediEx Pond 250 g).
• Medium pond or corrective intervention: prefer an intermediate size (BiOx 2500 ml, Oxypond 2.5 kg, SediEx Pond 1 kg).
• Large pond or lake: choose a large package for economical and effective treatment (BiOx 5000 ml, Oxypond 5 kg).

🔗 Direct link to the collection: View Active Oxygen products

5. Precautions, limits, and best practices for using active oxygen

— What active oxygen does not do

Active oxygen is a valuable ally to clarify water, limit algae, and break down organic matter… but it is not a miracle solution.

It does not replace:

• Regular mechanical maintenance (vacuuming sludge, cleaning filters, removing dead leaves)
• A balanced management of the population and fish feeding
• A filtration system adapted to the volume and use of your pond

It acts as a targeted reinforcement or preventive that optimizes your overall maintenance.

— Usage precautions

• Strictly follow the manufacturer's dosages to avoid any imbalance.
• Apply the product preferably early in the morning or late in the day when temperatures are cooler.
• Avoid combining it directly with copper treatments or certain strong algicides to preserve beneficial bacteria.
• In case of very warm water or high fish density, monitor wildlife behavior after treatment.

— Storage and shelf life

To maintain full effectiveness, active oxygen should be stored in a cool, dry, and dark place.

Carefully close the container after each use and ideally use it within 12 months of opening.

Conclusion – Give your pond a breath of fresh oxygen

A balanced and attractive pond is above all healthy, well-oxygenated water. 

Active oxygen is one of the simplest, most natural, and effective ways to:

• Prevent algae growth
• Reduce sludge and organic waste
• Improve water clarity
• Support the health of your fish and plants

Whether you are treating a specific problem or maintaining your pond long-term, our active oxygen solutions are designed to suit all situations and water volumes.

The complete range:

• Colombo BiOx: powerful and fast cleaning (available in 1000 ml, 2500 ml, 5000 ml sizes)
• AquaForte Oxypond: effective anti-algae treatment (available in 1 kg, 2.5 kg, 5 kg sizes)
• JBL SediEx Pond: combined bacteria + active oxygen action for clear, sludge-free water

Our Active Oxygen collection

A powerful and natural selection to keep your pond clean, clear, and balanced.

BiOx - Colombo

Oxypond - AquaForte

JBL SediEx Pond

View the full collection

Incorporate active oxygen into your maintenance routine, especially during key periods (spring, hot summer, after cleaning) to keep your pond healthy all year round.