JBL Aquarium

JBL - ProAquaTest PO4 Phosphate Sensitive refill

JBL - ProAquaTest PO4 Phosphate Sensitive refill
JBL - ProAquaTest PO4 Phosphate Sensitive refill
JBL - ProAquaTest PO4 Phosphate Sensitiv - Testing the phosphate level in water

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In stock (3)

Refill reagents for JBL ProAquaTest PO4 Phosphate Sensitiv. Allows you to do around 50 tests.

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JBL - ProAquaTest PO4 Phosphate Sensitiv - Testing the phosphate level in water
JBL - ProAquaTest PO4 Phosphate Sensitiv - Testing the...
(1 review)
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Learn more

  • Determination of phosphate levels for optimal plant growth or to find the origin of algae in seawater, freshwater and ponds.
  • Comparative laboratory system to compensate for the inherent color of the water: fill the test tubes with water to be tested, add the reagents to a test tube, place the test tubes in the support block, note the values on the color chart.
  • Use: new freshwater/seawater tank: once a week. And in case of green algae or tap water control.
  • On the JBL/Thèmes/Aquarium or Bassin website, you will find detailed information on water analyzes and troubleshooting
  • Included in delivery: 1 test set for approx. 50 measurements, 2 reagents, 2 glass test tubes with screw cap, syringe, scoop, comparator and color chart. Reagent refills available separately.

Healthy pond or aquarium and living conditions close to nature

The correct water parameters in the aquarium/pond depend on the fish population and the plants present. Even if the water looks clear, it can be polluted. If the parameters are wrong, diseases or algae can develop in the aquarium or pond. To have a healthy pond or aquarium with conditions close to the natural environment, it is important to regularly check and adapt the water parameters.

For every water analysis, JBL offers quick tests or color tests. These tests calculate a specific parameter or several parameters at the same time. They identify algae problems and negative parameters of nitrates, nitrites, potassium, magnesium, etc.


Why test?

In the aquarium, phosphates enter the water mainly through the digestive processes of fish and through food residues falling into the water. In ponds, phosphates arrive in the water mainly with the foliage and the plants or algae which wither. If the circumstances are unfavourable, the phosphate levels that are reached can be 100 times higher, or even more, than the natural levels. The inevitable consequence will be an almost explosive proliferation of unwanted algae.

Recommended phosphate content

  • Freshwater aquarium (community): 0-0.4 mg/l Malawi-Tanganyika aquarium: 0-0.4 mg/l
  • Planted tank with few fish (aquascaping): 0.1-1.5 mg/l Saltwater aquarium: 0-0.1 mg/l
  • Basin: <0.05 mg/l

Tests JBL ProAquaTest pour aquariums d'eau douce et d'eau de mer

Product Details

2412800

What they think about it
(and they are right...)

Reviews about this product
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1★
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9.8/10


Based on 13 reviews

  • Image utilisateur ALVARO M.
    Published Jun 10, 2026 at 07:55 pm (Order date: Jun 03, 2026)
    5

    Jbl, the best test (Translated review)

  • Image utilisateur FRANCISCO R.
    Published Mar 29, 2026 at 08:53 pm (Order date: Mar 15, 2026)
    5

    I like this product. The problem I see with this brand is that the solid component of one of the bottles runs out before the liquid component of the other bottle (Translated review)

  • Image utilisateur Didier L.
    Published Nov 06, 2025 at 10:21 am (Order date: Oct 29, 2025)
    5

    Satisfactory product (Translated review)

  • Image utilisateur Víctor Manuel O.
    Published Jun 11, 2025 at 12:16 pm (Order date: Jun 03, 2025)
    5

    Not tested yet, I can't give an opinion (Translated review)

  • Image utilisateur Herve r.
    Published Nov 09, 2024 at 08:55 pm (Order date: Nov 04, 2024)
    5

    Product conforms..fast delivery (Translated review)

  • Image utilisateur Paulo G.
    Published Dec 22, 2023 at 03:09 pm (Order date: Dec 14, 2023)
    4

    My overall experience with the dropper has been positive, but I have noticed that sometimes its effectiveness can be impaired. In the presence of a little air, it can deliver half a drop instead of a full one. However, a useful tip is to turn the little bottle slightly upside down before use, or to shake it gently to minimize the presence of air. Despite this small nuance, it remains a practical tool for precise dosing. (Translated review)

  • Image utilisateur Didier L.
    Published Mar 25, 2023 at 08:46 pm (Order date: Mar 19, 2023)
    5

    Very practical refills (Translated review)

  • Image utilisateur Dominique T.
    Published Mar 20, 2023 at 06:34 pm (Order date: Mar 07, 2023)
    4

    Fine (Translated review)

  • Image utilisateur Georges B.
    Published Dec 22, 2022 at 12:38 pm (Order date: Dec 16, 2022)
    5

    Ok... (Translated review)

  • Image utilisateur DANIEL R.
    Published Nov 29, 2022 at 12:03 pm (Order date: Nov 17, 2022)
    5

    very well (Translated review)

Show more reviews


JBL - ProAquaTest PO4 Phosphate Sensitive refill
JBL - ProAquaTest PO4 Phosphate Sensitive refill
JBL - ProAquaTest PO4 Phosphate Sensitive refill
JBL - ProAquaTest PO4 Phosphate Sensitiv - Testing the phosphate level in water