Liquid organic fertiliser for aquaponics, NPK 0-0-4
| Packaging | Price | Price per L | vs 500 mL |
|---|---|---|---|
| 500 mL | Dhs. 49.00 | Dhs. 98.00 | — |
| 1 L | Dhs. 67.00 | Dhs. 67.00 | −32 % |
| 5 L | Dhs. 273.00 | Dhs. 54.60 | −44 % |
| 10 L | Dhs. 483.00 | Dhs. 48.30 | −51 % |
This liquid organic fertiliser with an NPK 0-0-4 formula is added directly to water containing fish. It supplies the potassium and chelated trace elements that fish waste does not provide, without destabilising the biofilter. Made in France, it is approved for use in organic farming.
The summary
- What you receive: a bottle of organic liquid fertiliser 0-0-4, in 500 ml, 1 L, 5 L, or 10 L.
- The dose: 0.5 ml per 10 litres of water, every day, once your crops are established.
- What it supplements: the potassium and trace elements that the mineralisation of fish waste does not provide.
- How to choose: this one can be added to water containing fish; a growth fertiliser cannot.
Potassium and chelated trace elements to add to water that houses fish
This organic liquid fertiliser is designed for water that contains fish. Its NPK 0-0-4 formula provides neither nitrogen nor phosphorus, as both elements are already supplied by the mineralisation of fish waste. It supplements what your fish cannot provide, potassium and chelated trace elements, without disturbing the micro-organisms in the biofilter.
🐟 The hydroponics fertiliser and the fish
A hydroponics fertiliser supplies its nitrogen as concentrated mineral salts, nitrates and often a share of ammonium. In a reservoir without fish, that is exactly what is needed. In water that holds fish, ammonium is precisely the form that the biofilter bacteria oxidise into nitrite and then nitrate, so pouring it in straight from the bottle adds to the load your filter already has to nitrify from the fish waste. The nitrogen cycle describes this conversion step by step.
What the fish provides
The mineralisation of waste releases nitrogen and phosphorus, the elements plants consume most.
Both to keep an eye on
Little potassium comes in through the feed, and non-chelated iron precipitates as soon as the pH rises above 7.
Trace elements
Iron, manganese, zinc, copper and boron are chelated and therefore readily available to plants.
Measure iron and potassium levels before dosing
Yellowing leaves can have several causes. The iron test, which measures from 0.02 mg/L, confirms or rules out the most common deficiency. The potassium test covers the one that fish feed rarely makes up. With both readings in hand, you can adjust the supply to what your system actually uses.
💧 Everyday dosing
The dose is 0.5 ml per 10 litres of water, every day, from the moment your crops are established. A 200 litre system therefore receives 10 ml per day, or a little over 3.6 litres over a year. Shake the container before pouring, as the organic matter settles at the bottom between uses, and pour into an area where the water is circulating. Two limits go with this dose: the supplement is added only when a need has been identified, and the prescribed dose is never exceeded.
Store the container between 5 and 25 °C
Store the container in a dry place, in its original sealed packaging, at a temperature between 5 and 25 °C. An unheated garden shed is therefore not suitable in winter. The product keeps for 2 years from its production date, and should be stored out of reach of children.
📦 Which size for which volume
The right size is worked out from the volume of water actually in circulation, fish tank and reservoir included, since the dose follows the litres and not the number of plants. If your system holds 200 litres, you will use up the 500 ml bottle in 50 days and the 1-litre container in 100 days, at 10 ml per day. The 5-litre container covers a full season on a 500-litre system, which receives 25 ml per day. The 10-litre container is intended for installations of at least 1,000 litres, where it lasts 200 days, which is still well within its shelf life of 2 years.
Technical specifications
The formula
- Declared formula
- NPK 0-0-4No nitrogen or phosphorus — those come from the fish
- Potassium
- Potassium oxide, 4 %
- Calcium
- Calcium oxide, 1%
- Trace elements
- Iron, manganese, zinc, copper, boronAll chelated, so held in solution and readily absorbed
Dosage and use
- Dose
- 0.5 ml per 10 LEvery day, from the moment the crops are installed
- Before pouring
- Shake the containerOrganic matter settles between uses
- Storage
- Between 5 and 25 °C2 years from the production date, unopened packaging
- Certification
- Suitable for organic farmingRegulations (EU) 2018/848 and 2021/1165
Origin and use
- Manufacturing
- France
- Environment
- Indoor and outdoor
To budget for separately
- Iron monitoring
- A liquid iron test kit
- Potassium monitoring
- A potassium drop test
4 further specifications are available in the detailed view.
In the box
- 1 bottle of Aquaponic Mix in the chosen size: 500 ml, 1 L, 5 L or 10 L
Formula, guaranteed analysis, application rate, and certification recorded on 20/09/2026 from the manufacturer's website, their 2025 catalogue, and the product label. Storage: safety data sheet dated 17/01/2024.
Feed plants with or without fish in the water
Two liquid fertilisers, two sources of nitrogen
| Declared formula | Nitrogen source | Reference dose | Target crop | Raw materials | Price | |
|---|---|---|---|---|---|---|
| Recommended Liquid organic fertiliser for aquaponics, NPK 0-0-4Your choice | 0-0-4 | Fish waste | 0.5 ml per 10 litres, every day | Aquaponic system with fish | Of organic origin | Dhs. 49.00 |
| TriPart Grow growth fertiliserYour choice | 3-1-6 | The container, in mineral form | 1,8 ml per litre during full growth | Soil-free growing without fish | Mineral salts | Dhs. 38.00 |
Formulas, doses and raw materials recorded on 20/09/2026 from the manufacturer.
Help choosing
Do your plants share their water with fish?
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Frequently asked questions
6 questions
6 key questions
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