Contains calcium, strontium, and magnesium in the same ionic ratios found in aragonite. This unique feature increases the usefulness of Kalk+2 to reef-building invertebrates such as corals, clams, calcareous algae, etc.
Provides temporary alkalinity and helps maintain pH within the desired range when used as directed.
Adds no conservative elements, such as chloride, to the aquarium.
Improves upon the industry-standard powdered calcium supplement over the past three decades.
Formulated by a marine scientist.
225 g | 450 g
Calcium, magnesium, and strontium are required for the formation of aragonite, the skeletal material of reef-building invertebrates such as corals, clams, tube worms, and their respective allies. Brightwell Aquatics Kalk+2 provides these elements and may also be used to help regulate pH in reef aquaria. Kalk+2 does not contain chloride salts, which is a strong point for some hobbyists. The use of kalkwasser-type products remains very popular with many seasoned hobbyists, regardless of innovations in calcium-delivery methods.
Instructions and Guidelines
Kalk+2 is intended for use by experienced hobbyists who are familiar with kalkwasser (calcium hydroxide-based) products. The calcium concentration (”[Ca2+]”) and pH in the aquarium should be determined by using an accurate test kit prior to supplementing. Do not add this product directly to an aquarium without diluting in water as directed, and do not overdose; it must be added in a controlled fashion with a dosing device. Create a stock solution by dissolving 6 grams (~1 tsp) of Kalk+2 in 1 US-gallon of fresh water (preferably purified) and allowing at least one hour for any settling to occur; each ml of the saturated sol’n will increase the [Ca2+] in 1 US-gallon (3.785 L) of water by 2.3 ppm, strontium concentration by 0.04 ppm, and magnesium concentration by 0.06 ppm. This solution must then be dosed/dripped into the aquarium at such a rate that salinity does not fall below 1.021 g/cm3 and pH does not increase by more than 0.1 every hour, nor is it ever allowed to exceed a value of 8.5. Dosing at night when pH in a reef aquarium is naturally depressed is often performed to avoid exceeding the maximum allowable pH value. If the [Ca2+] in an aquarium is gradually dropping despite using this product as directed, the rate of evaporation may be insufficient or pH may be too high to dose sufficient calcium to compensate for the rate of removal by reef-building aquarium inhabitants and/or undesirable chemical reactions. In this case, a secondary calcium supplement may be needed to occasionally re-establish the natural seawater concentration of calcium in the aquarium.
Caution: Calcium hydroxide is a caustic material; if inhaled, remove to fresh air, and in case of contact flush skin and/or eyes with fresh water for 15 minutes. Drink 16-oz. fruit juice if swallowed and seek immediate medical attention. Keep out of reach of children. Not for human consumption.
Our item will send to you on the every Monday till Friday except live stock will not send out Thu and Friday after we have receive your payment and receive your email regarding your particulars and payment info. Combine shipping is allowed.
Dead on Arrived Policy
*We do provide DOA guarantee for all the livestock we shipped.
*Any casualties claim must be made within 24 hours upon received.
*A clear picture showing the quantity of the casualties is needed BEFORE unpack the breathing bag.
*We will not liable to any casualties claim if not picture are presented or excess 24 hours.
*We provide 100% refund for the casualties. (excluded postage)
*Buyer need to top up the postage if resend are required.
*Extra postage will be refund inside the packages.
Replace and Refund Policy
All items are subject to careful inspection before they are delivered, so quality of our products is guaranteed and damage is rare. However, if you are not happy with the quality or the item happens to be faulty, please contact or email to our company within 2 days of delivery with photos of the damage. We will take this record for a reference purpose to improve our services.
Our company stuff will assess the damage and, if authorized, they will arrange to collect the item from you or send you a replacement. If the item runs out of stock, we will give you a refund.
If you are having a problem and dissatisfied with the response from the store support, please report to us.
When you request for a replacement, we reserve the right to understand the reason behind it.
When you receive your item, we recommend you to check your item immediately before signing the delivery form, to confirm that the delivered items are in good conditions.
We hold the rights to refuse a replacement or refund if an item are worn or have been used.
If the item runs out of stock, will email you to schedule a refund.
Following advice from our company support team, we will issue the refund in full straightaway after receive the receipt of the item, and should be credited to your specified Bank account within 14 working days.
A refund is not approved with any item lost during delivery.
Please return your purchase to the following address:
19, Munshi Abdullah, 10460 Penang
Still Need Help?
As per our pledge and promise to you, we will always stand-by and happy to serve you with any question and concerns you may encountered regards to our Return and Refund Policy. Do feel free to reach us through:
Note : The seller assumes all responsibility for listing this item. Please contact the seller to resolve any questions before or after purchasing the item. Currency is RM (Ringgit Malaysia) unless otherwise noted.