Anti-phosphate treatment for garden ponds

21,90 €

Format	Price	Price per L	vs 0.5 L
0.5 L	21,90 €	43,80 €	—
1 L	39,90 €	39,90 €	−9 %

This liquid treatment permanently binds dissolved phosphates in a garden pond, cutting off one of the key resources algae depend on.

The dose is calculated from a measurement: 10 to 50 ml per cubic metre depending on the level recorded, with a minimum of 10 days between treatments.

Ref. NEOANP500B·Pond treatment

Format : 0.5 l

0.5 L

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The summary

What you receive: a bottle of liquid treatment, 0.5 litre or 1 litre, ready to pour.
What it does: it durably binds dissolved phosphates, which are one of the resources algae live on.
Dosage: 10 to 50 ml per cubic metre depending on the measured level, with at least 10 days between two applications.
What you need beforehand: a phosphate test, because the dose is worked out from the reading taken and nothing else.
Half a litre or a litre: one litre binds 3 mg/L of phosphate in 50 cubic metres of water.
Shipping: small parcel, costs calculated at checkout according to weight and destination.

Liquid treatment that binds dissolved phosphates in an ornamental pond

The anti-phosphate treatment for garden ponds durably binds dissolved phosphates, one of the resources that algae in an ornamental pond live on. Its dose, from 10 to 50 ml per cubic metre, is worked out from the level measured by a phosphate test. One litre binds 3 mg/L in 50 cubic metres, with at least 10 days between two treatments.

Phosphates act as a fertiliser, and in a garden pond it is algae that benefit from them. This liquid binds them permanently, depriving algae of this resource in water that repeatedly turns green. One litre binds 3 mg per litre of phosphate in 50 cubic metres of water, and the exact dose is calculated from your measured reading.

🧪 Measure before dosing

The dose for this treatment cannot be calculated on volume alone. The range runs from 10 to 50 ml per cubic metre, and where you land within that range depends on the phosphate level measured in your water. Without a measurement, you are choosing at random between one extreme and the other. The drop-based phosphate test gives you the value in around twelve minutes, and can be repeated 10 days later to see where things stand. Also make sure your filtration is in good working order before dosing, as it is the filtration that will subsequently remove the fixed matter.

Food

What fish don't eat breaks down and releases phosphates into the water.

The leaves

A layer of leaves left at the bottom releases nutrients for months as it decomposes.

The top-up water

Mains or rainwater brings its own mineral load, which varies depending on the source.

📉 10 days between visits

The minimum interval between two treatments is 10 days, as this is the time needed for the product to take effect and for a new measurement to be meaningful. Re-applying after 3 days because the water is still green achieves nothing further; the water colour reflects the algae already present, not the current phosphate level. Those algae then take several weeks to disappear once their phosphorus source has been exhausted.

Measuring phosphates before and after treatment

Pick up the phosphate test at the same time as the bottle, as it converts a dosing range into a precise dose and tells you 10 days later whether a second application is warranted. If your water is green without phosphates being the cause, the article on green pond water works through the other possibilities, starting with light levels and fish stocking density.

Treat the cause, not the symptom

A bottle of anti-phosphate treatment binds what is already dissolved, but it does nothing to stop an ongoing source. Remove leaves before they decompose, feed more precisely, and check your top-up water, some water suppliers add phosphates to the mains supply to protect pipework. If the level rises again with every measurement, the source is still active, and that is what needs addressing before you dose again.

🌿 For ornamental ponds only

The phosphorus this product removes from the water is a major plant nutrient. In an ornamental pond, removing it is precisely the aim. In an aquaponic system growing edible crops, the logic is reversed: you would be depriving your plants of an element they need, and the first signs appear in the foliage, tomatoes that flower without setting fruit, and older leaves taking on a purplish tinge. Reserve this treatment for your ornamental water feature. The subject of plant nutritional requirements is covered in recognising deficiencies in aquaponics.

📦 Bottle and storage

You receive a single bottle, of 0.5 or 1 litre, to be stored closed between 10 and 25 °C, where it will keep for 24 months. The choice of size should be based on your pond volume and the measured levels, not on how frequently you plan to treat, since a product that needs topping up every month points to a source problem rather than insufficient stock. A 10-cubic-metre pond at an average dose uses approximately 300 ml per application, meaning the 0.5-litre bottle covers one application and the 1-litre bottle covers 3.

Technical specifications

The essentials

Dosage: 10 to 50 ml per m³The point within the range is chosen based on the measured level.
Binding capacity: 3 mg/L in 50 m³ per litre

Frequency and filtration

Interval between visits: 10 days at a minimum
Before pouring: Filtration in good working order

Storage

Duration: 24 months
Storage temperature: From 10 to 25 °C

To budget for separately

Phosphate test: Required to choose the correct dose
Graduated beaker: For drawing off millilitres

In the box

1 bottle of liquid treatment, 0.5 or 1 litre depending on the format chosen

Dosage range, binding capacity, minimum interval between treatments, instructions on filtration, storage temperatures and shelf life taken on 19/09/2026 from the manufacturer's description for reference IchiPond Anti Phosphate, code 5425009252222.

Manufacturer and product safety

Manufacturer: AQUATIC SCIENCE SA
Postal address: Rue des Biolleux 8, 4800 Verviers, Belgique
Contact: info@aquatic-science.com
Website: aquatic-science.com

Information provided under Regulation (EU) 2023/988 on general product safety.

Half a litre or one litre, depending on your pond

The same liquid in both bottles. What differs is the volume of water you can treat.

The same liquid, two capacities One litre fixes 3 mg per litre of phosphate in 50 m³. Everything else is simply a matter of volume.

	Capacity (L)	Volume treated for a 3 mg/L reduction (m³)	Doses of 10 ml/m³ for a 10 m³ pond (doses)	Treats a 50 m³ pond in a single dose	Price
0.5 LYour choice	0,5 L	25 m³	5 doses	No	21,90 €
Recommended 1 LYour choice	1 L	50 m³	10 doses	Yes	39,90 €

0.5 L

What you receive

Capacity (L)0,5 L

What this covers

Volume treated for a 3 mg/L reduction (m³)25 m³

Doses of 10 ml/m³ for a 10 m³ pond (doses)5 doses

Treats a 50 m³ pond in a single doseNo

In the shop

1 LRecommended

What you receive

Capacity (L)1 L

What this covers

Volume treated for a 3 mg/L reduction (m³)50 m³

Doses of 10 ml/m³ for a 10 m³ pond (doses)10 doses

Treats a 50 m³ pond in a single doseYes

In the shop

Binding capacity and dosage range recorded on 19/09/2026 from the manufacturer's product description for the reference IchiPond Anti Phosphate.

Estimate your
delivery time

This bottle goes out as a small parcel. The exact amount is calculated at checkout according to the total weight of your order and your destination.

Frequently asked questions

8 questions

6 key questions, 8 in the detailed view

Which dose to choose between 10 and 50 ml per cubic metre?

Choose the quantity that your measurement requires. One litre fixes 3 mg/L of phosphate in 50 m³, which is 20 ml per cubic metre for a reduction of 3 mg/L; the dose is worked out from the reduction you are aiming for:

Target reduction	Dose	10 m³ pond
1.5 mg/L	10 ml/m³	100 ml
3 mg/L	20 ml/m³	200 ml
7.5 mg/L	50 ml/m³	500 ml

Repeat the phosphate test 10 days after treatment to determine whether a second application is needed.

How much phosphate can one litre bind?

Can it be used in an aquaponics system?

Should filtration be stopped?

How do I know whether my top-up water is introducing phosphates?

My water is still green 3 days later, do I need to pour again?

Does the bottle include a measuring spoon?

How long does a bottle keep once opened?

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Anti-phosphate treatment for garden ponds

The summary