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JBL K Test

JBL K Test

  • For approx. 25 tests
  • Measuring range: 2.0 to 15 mg/l
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The JBL K test set is an easy-to-use quick test for determining the potassium level of freshwater.


  • Potassium is an essential plant nutrient that is quickly exhausted
  • Lack of potassium leads to stagnating plant growth and perforated leaves
  • Measuring range: 2.0 to 15 mg/l
  • For approx. 25 measurements
  • Includes syringe to measure amount of water

Product safety

Safety information in accordance with GHS


Signal word: Danger

  • H314 Causes severe skin burns and eye damage.



JBL is a German company with a long tradition and a vast product range for aquarium enthusiasts. From high-quality fish and shrimp food over external filters to aquatic plant fertilisers - JBL offers an enormous choice for every aquarium keeper.

The research and development department of JBL constantly brings new innovative products onto the market. No matter whether you are an aquascaper, fish keeper, shrimp keeper or planted tank enthusiast, JBL offers suitable tools and accessories for all of these aspects of the hobby in order to support aquarium enthusiasts with the set-up and maintenance of their tanks.

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Customer reviews

This item has been rated 4.5 out of 5 stars
11 Reviews
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5 Stars(8)
4 Stars(2)
3 Stars(0)
2 Stars(1)
1 Star(0)
Michael R.
13th September 2015
JBL - K Test - Test kit
JBL - K Test - Test kit

Bei einer Gegenmessung einer Laborprobe mit einem Kaliumgehalt von 0,5mg/l zeige der JBL Test einen Wert von 4 mg/l. Die Genauigkeit des Tests ist daher eher sehr zweifelhaft. (read more)

Ralf M.
13th June 2016
JBL - K Test - Test kit
JBL - K Test - Test kit

Einfach zu Bedienen und gut ablesbarer Kalium -Test. Hat mir geholfen, meine Düngemenge optimal einzustellen. (read more)

Dominik W.
24th November 2015
JBL - K Test - Test kit
JBL - K Test - Test kit

Der Test ist absolut einfach zu Bedienen und abzulesen.

Er zeigt die von mir berechnet Werte 1:1 an.

Der Preis ist absolut gut für einen so zuverlässigen Test.

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