Seachem Reef Kalkwasser is an exceptional calcium hydroxide formulation, renowned for its unmatched purity and solubility. This product makes it possible for hobbyists and seasoned aquarists to maintain natural seawater calcium concentrations within marine aquariums using limewater solutions. By helping manage both calcium directly and carbonate alkalinity indirectly, it supports a stable marine ecosystem. However, its effectiveness is linked closely to evaporation rate and CO2 concentration, and additional calcium products may be required to maintain optimal levels.

While widely regarded as a reliable method to maintain calcium, using kalkwasser can be challenging for beginners. On the path to mastering its application, monitoring and adjusting carbonate alkalinity is essential to prevent the depletion through calcium carbonate precipitation. Additionally, maintaining magnesium levels is critical, as magnesium is indispensable for coral health. The presence of magnesium prevents pH shifts by stabilising buffer systems, while regular cleaning ensures substrate and plumbing surfaces remain chalk-free.

Kalkwasser’s extensive utilisation has proven its value in sustaining successful marine environments. Despite being high purity and cost-effective, beginners or those pressed for time may opt for alternative methods to manage ionic concentrations easily.

Key Features:

• High purity calcium hydroxide for precise reef aquarium use.
• Maintains natural seawater calcium and alkalinity levels.
• Supports marine ecosystems with reliable calcium management.
• Economical solution for experienced marine hobbyists.
• Essential for maintaining coral health with proper magnesium balance.

For those dedicated to achieving and sustaining an exemplary reef environment, Seachem Reef Kalkwasser offers a straightforward yet effective method. With careful monitoring and adjustment, it facilitates the essential balance of calcium and alkalinity in your aquarium, ensuring the healthy growth and sustenance of corals and other marine life.

Specifications:

• Net Weight: 2 kg
• Form: Pure Calcium Hydroxide
• Application: Limewater (Kalkwasser) solution preparation
• pH Stability: Maintains 8.3–8.4 with proper use
• Compatibility: Safe for marine reef systems

Aquacadabra acts as credit broker/intermediary and not as a lender.

Klarna's credit products are provided by Klarna Bank AB, which is authorised and regulated by the Swedish Financial Services Authority, with limited supervision by the Financial Conduct Authority. More information can be found here.

Newpay finance options are provided through Deko’s platform by NewDay. P.D. Aquatics Ltd, t/a Aquacadabra is an Introducer Appointed Representative of Pay4Later Ltd, t/a Deko, which is authorised and regulated by the Financial Conduct Authority (ref no 728646) and is a credit broker, not a lender. NewDay Ltd is authorised and regulated by the Financial Conduct Authority (ref no 690292) and is authorised by the Financial Conduct Authority under the Payment Services Regulations 2017 for the provision of payment services (ref no 555318). More information can be found by clicking the newpay option above, or in the Newpay FAQs.

We really want you to be happy with the product that you've received. If however, when the goods arrive they're not what you want, then no problem - we have a 60 day no quibble return guarantee. Just let us know that you're going to return the item(s) by contacting us(stating your Order Number) and complete the returns packing slip that will have been included with your delivery. This will help us to quickly identify the item that you have returned (unopened and unused) - and we'll put a refund through for you.