Korallen-Zucht Iodide Complex Concentrate 50 ml

Iodide Complex Concentrate (Jod Komplex Konzentrat) is needed for improved coloration. Corals need iodide in different forms as well as additional elements which enable an optimal assimilation of the iodide.

Contains organic and inorganic iodide as well as bromine, potassium and fluorine. Recommended in any tank system.

Dosing Instructions: 1 drop per 25 gallons per day.

Compatibility

What it is. Iodide, in more than one form. KZ’s catalogue: contains organic and inorganic iodide plus bromine, potassium and fluorine, all necessary elements for corals and for biological function, and it improves vitality and colouration of all kinds of corals, especially blue and green. The dosing guide adds that the organic iodide is the red fraction and that the product contains no impurities, and lists the target as deeper pink, blue, green and red.

Where this sits in the Korallen-Zucht range. KZ build everything around four basis products (ZEOvit zeolite media, ZEObak, ZEOfood and ZEOstart) which together are the ZEOvit system. Everything else in the range, this product included, is a layer on top: colour products, problem solvers, and single elements. KZ’s own guidance is that the products can each be used separately, without the complete ZEOvit system and without the other KZ products, but that the full effect in quality and colouration comes only from running the system.

Dose it on a different day from ZEObak, CyanoClean and Bio-Mate. KZ are explicit about that separation.

The Potassium Iodide Fluoride Concentrate is KZ’s stated alternative to this product, or something to alternate with it. It carries inorganic iodide only.

Bulk Reef Supply note it is recommended in any tank system, with or without ZEOvit.

No ozone and no UV while you are running the ZEOvit system. That is KZ’s instruction, and the reason is the point of the system: ozone and UV destroy the microorganisms and elements the whole method depends on.

KZ’s own target water parameters, for any tank running their products: calcium 400 to 410 mg/L, magnesium 1,260 to 1,280 mg/L, carbonate hardness 6.5 to 8, potassium 380 to 400 mg/L, salinity 33 to 35 ppt. They add a warning worth repeating: higher figures bring no advantage. Neither growth nor colouration in SPS corals is improved by pushing past these, and higher levels tend to have negative effects.

Dosage & Directions

Korallen-Zucht’s own dose. 1 drop per 100 litres every other day.

Two dosing figures circulate for this product. The retail label gives 1 drop per 25 US gallons daily. Korallen-Zucht’s own 2018 Easy Reefing guide gives 1 drop per 100 litres every other day. Iodide is the additive KZ warn most clearly about overdosing. Where the two disagree we print Korallen-Zucht’s own, and if you are new to the product the lower rate is the one to start on: you can always dose more.

How and where it goes in. Directly into the tank, into the flow. All equipment stays running.

Start below the figure, not at it. KZ’s own instruction for a first-time user, a lightly stocked tank, or a tank with little growth: reduce the dosage recommendation and adjust upward. Their words: do not act on the principle that the more the merrier.

Calculate on gross volume. KZ ask you to use the gross water amount for dosing arithmetic, not a net figure with rock and sand deducted.

Overdosing turns yellow corals green. KZ’s own warning, and a genuinely useful one: too much iodide takes yellow coral colours towards green, and two-coloured Stylophora towards green rather than pink. Bulk Reef Supply describe the same thing as a green shimmer on yellow corals, and recommend stopping until the yellow comes back.

Pack Size

This listing is the 50 ml pack.

Buy the size you will actually get through. These are concentrated additives dosed in millilitres and drops. A 5-litre container on a nano tank is not a saving; it is a bottle that will outlive its usefulness on the shelf.

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 48 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.