Tropic Marin Potassium 500 ml

Tropic Marin Potassium replenishes this essential main nutrient, consumed steadily in reef aquaria at natural seawater concentration.

Features:

Potassium supplement for aquaria

Potassium is an essential main nutrient for all organisms. In seawater the natural potassium concentration is ca. 408 ppm. Potassium consumption in saltwater aquaria usually is small since potassium does not form insoluble compounds and is only minimally adsorbed by other substances. The potassium level can often be maintained by water changes. The use of zeolites and other adsorbers can result in a potassium deficiency. One indication of potassium deficiency is loss of color in corals and the retraction of polyps.

With Tropic Marin^® POTASSIUM the potassium concentration can be re-adapted to the natural level and may improve vitality and colors of many corals.

Benefits:

How to use:

PRO-CORAL POTASSIUM contains 10 % potassium. Dosage of ½ fl. oz./15 ml Tropic Marin^® POTASSIUM will raise the potassium concentration of 40 US-gal./150 l by approximately 10 ppm. Maximum recommended dose is 1 fl. oz./30 ml POTASSIUM per 40 US-gal./150 l water per day.

Use the new dosing calculator for an easy determination of the required amount of dosage for your aquarium.

The natural potassium concentration (approx. 408 mg/l) should not be exceeded – higher potassium concentrations can be harmful for sensitive invertebrates. On the other hand, by adjusting the potassium concentration to the natural level with Tropic Marin^® POTASSIUM may improve vitality and colors of many corals. Potassium concentration should always be measured before dosing Tropic Marin^® POTASSIUM.

Freshness & Storage

Every batch we dispatch carries a minimum of 6 months' remaining shelf life. Store this product in a cool, dry place away from direct sunlight, with the cap or inner foil closed tightly after each use.

Backorder & Dispatch Timeline

This item is stocked to order. Back-orders are consolidated and placed with our overseas suppliers once a month, on the last day of the month, and all such orders are shipped before the 15th of the following month.

Back-orders cannot be cancelled once they have been placed with the supplier. If you cancel before that, payment-gateway charges of 2% plus GST are deducted and the balance refunded. In the rare case a supplier cannot fulfil the item, we will offer you an alternative first, and refund in full with no deduction if you would rather not take it.

Returns & Replacement

Returns are accepted within 7 days of delivery, provided the item is unused and in its original packaging. Manufacturer-sealed items cannot be returned once the seal is broken, and sale-priced items are not refundable.

If your item arrives defective or damaged, message us on WhatsApp with your order number — or email us, if you would rather — and we will replace it. Approved replacements are delivered within 3 to 5 business days. Transit damage is covered by insurance on every shipment. If tracking shows delivered but nothing reached you, tell us within 72 hours, which is the reporting window Indian couriers allow. Damage caused during installation or use is not covered; replacement spares for such cases are chargeable.

Full terms are on our Cancellation & Returns page.