• For perfect plant growth: Determine the optimal potassium level to control fertilization in freshwater aquariums.
• Quick test: fill cuvette with water sample, add reagents, pour cloudy water sample into specific cuvette. of glass until the cross below is no longer visible, read the amount poured. The value is equivalent to the potassium concentration in mg/l.
• A very low potassium level paralyzes the growth of plants even if they have all the other factors such as CO2, iron and light. Using fertilizers such as JBL Ferropol or JBL ProScape K Macroelements you can increase the K concentration.
• In the “Aquarium” topic on the JBL website you will find detailed information on water analysis and solutions to problems.
• Supply: 1 potassium test for approx. 25 measurements, incl. 2 reagents, special glass cuvette, syringe, measuring spoon and color scale. Filling reagent sold separately.

All our products leave our facilities within 24-72 business hours after verifying correct payment for the product. Deliveries in Gran Canaria are carried out by our staff. We also make shipments to Lanzarote, Fuerteventura, Tenerife, La Palma, La Gomera and El Hierro . This service includes an additional cost depending on the weight of the Item, which will be calculated automatically in the payment gateway. We ship to the Peninsula, the costs for this service vary depending on the weight of the items and the amount is calculated automatically on the payment screen. Later you will be assigned a shipping code, so that you can always track your package and thus have greater peace of mind.

Free shipping ONLY on the island of Gran Canaria for purchases over 30 euros, if this is not exceeded there will be a surcharge of 2.99 euros for shipping . The delivery of the purchase will be made to the address you indicate.

Orders for La Aldea de San Nicolás will be delivered to a previously agreed location in Mogán .

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