• Simple and safe control of aquarium water parameters. Determines the optimal level of magnesium and calcium for the strong and healthy growth of corals and red coralline algae.
• Easy to use: perform the calcium test first, and then the magnesium test. Subtract the calcium test value from the magnesium test value: the result is the magnesium concentration.
• Duration: the number of measurements depends on the concentration of calcium and magnesium.
• In the “Aquarium” or “Pond” topic on the JBL website you will find detailed information on water analysis and solutions to problems.
• Delivery: 1 Mg test and 1 Ca test, incl. 5 reagents, plastic cuvette, syringe and measuring spoon. 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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