Korallen Zucht AcroGlow – 250 ml

AcroGlow from Korallen-Zucht promotes recovery and vivid coloration in Acropora, easing acclimatization of South Sea corals from Fiji, Tonga, or Australia.

AcroGlow promotes recovery and very good coloration especially of Acropra Sp.

• Daily dosing facilitates acclimatization and keeping of South Sea Corals from Fiji, Tonga or Australia immensly (if the main water parameters are fine!), the original coloration of these corals will be enabled again.
• Acropora Millepora sp. can retrieve their two or three colors.
• It does not distort natural coloration, but brings it back.
• Also yellow color of Acropora can be retained.

Dosage: 1 drop/100 L/day.
This can be up to doubled for a short time, as soon as the corals react return to the normal dosage.

Compatibility

What it is. KZ's dosing guide describes Acro Glow in four words: recovery and colouration for Acropora. It sits in their “extreme colouration” group alongside ZEOspur 2, ZEOspur Macroelements and Stylo-Poccy Glow, each aimed at a different group of corals.

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.

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 400–410 mg/L, magnesium 1,260–1,280 mg/L, carbonate hardness 6.5–8, potassium 380–400 mg/L, salinity 33–35 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, or 0.3 ml per 1,000 litres, two to three times a week or as needed.

Two dosing figures circulate for this product. The retail label gives 1 drop per 100 litres daily. Korallen-Zucht's own 2018 Easy Reefing guide gives 1 drop per 100 litres two to three times a week. 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.

Healthy corals only. KZ attach the same caution to this group of colour products: apply only in tanks with healthy corals, do not overdose, and do not shorten the dosing interval.

Pack Size

This listing is the 250 ml pack.

What that is worth on a 100-litre tank. At KZ's rate of 0.03 ml per 100 litres per dose, 250 ml is about 8333 doses — and on a 100-litre tank, 8333 doses of dosing. Scale it down for a bigger tank: a 400-litre tank uses four times as much per dose, so the same bottle lasts a quarter as long.

We stock it in 10 ml, 50 ml, 100 ml, 250 ml, 500 ml and 1000 ml. The contents are identical; only the bottle changes. If you are dosing a large system daily, the larger packs are the ones to ask about.

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 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.