JBL Aquarium

JBL - ProAquaTest K - Test for potassium in fresh water

JBL - ProAquaTest K - Test for potassium in fresh water
JBL - ProAquaTest K - Test for potassium in fresh water
JBL - ProAquaTest K - Test for potassium in fresh water
JBL - ProAquaTest K - Test for potassium in fresh water
JBL - ProAquaTest K - Test for potassium in fresh water
JBL - ProAquaTest K - Test for potassium in fresh water
JBL - ProAquaTest K - Test for potassium in fresh water

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JBL ProAquaTest K is a quick test for determining the potassium level of water in freshwater aquariums . Allows you to do around 25 tests.

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Learn more

  • For Perfect Plant Growth: Determining the Optimal Potassium Level for Controlling Fertilization in Freshwater Aquariums
  • Rapid test: fill a test tube with the water to be tested, add the reagents, pour the cloudy test water into the special test tube until the cross below is no longer visible, read the quantity filled. This figure corresponds to the K in mg/l.
  • Too little potassium causes plant growth to stagnate, even in the presence of all other factors such as CO2, iron and light. To increase the potassium content, use JBL Ferropol or JBL ProScape K Macroelements fertilizers.
  • On the JBL/Themes Aquarium website you will find detailed information on water analyzes and solutions to problems.
  • Included in delivery: 1 Potassium test for approx. 25 measures, 2 reagents, special glass test tube, syringe, scoop 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?

Potassium is one of the macronutrients that plants absorb efficiently from fresh water within a few hours and store temporarily. Growing plants have a higher potassium requirement compared to other elements. Despite regular fertilization of the aquarium water, potassium may be reduced to a minimum and plant growth will stagnate. In tap water, potassium is generally an insufficient element compared to that of natural biotopes, especially in relation to the concentration of calcium and magnesium.

Recommended potassium levels

  • Freshwater aquarium (community): 10-30 mg/l
  • Aquarium Malawi-Tanganyika: 10-30 mg/l
  • Planted tank with few fish (aquascaping): 10-30 mg/l
  • Saltwater aquarium: the potassium content cannot be measured with this test.

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

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Reviews about this product
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Based on 2 reviews

  • 5

    Not yet used, but JBL make good test products (Translated review)

  • 5

    Very good (Translated review)



JBL - ProAquaTest K - Test for potassium in fresh water
JBL - ProAquaTest K - Test for potassium in fresh water

JBL ProAquaTest K is a quick test for determining the potassium level of water in freshwater aquariums . Allows you to do around 25 tests.

JBL - ProAquaTest K - Test for potassium in fresh water
JBL - ProAquaTest K - Test for potassium in fresh water
JBL - ProAquaTest K - Test for potassium in fresh water
JBL - ProAquaTest K - Test for potassium in fresh water
JBL - ProAquaTest K - Test for potassium in fresh water
JBL - ProAquaTest K - Test for potassium in fresh water