---
product_id: 59392549
title: "Reef Kalkwasser, 2 kg"
brand: "seachem"
price: "Bs.3636"
currency: BOB
in_stock: true
reviews_count: 5
url: https://www.desertcart.bo/products/59392549-reef-kalkwasser-2-kg
store_origin: BO
region: Bolivia
---

# Raises calcium by 24 mg/L per gallon Stabilizes pH at 8.3–8.4 without affecting alkalinity 99.9% pure calcium hydroxide Reef Kalkwasser, 2 kg

**Brand:** seachem
**Price:** Bs.3636
**Availability:** ✅ In Stock

## Summary

> 🌊 Keep your reef thriving with precision calcium control!

## Quick Answers

- **What is this?** Reef Kalkwasser, 2 kg by seachem
- **How much does it cost?** Bs.3636 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/59392549-reef-kalkwasser-2-kg)

## Best For

- seachem enthusiasts

## Why This Product

- Trusted seachem brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Long-Lasting:** 2 kg powder pack designed for consistent reef care across all life stages.
- • **Safe & Clean Application:** Use only the clear supernatant to avoid unwanted precipitates and keep your tank pristine.
- • **Ultra-Pure Calcium Boost:** Elevate your reef’s calcium levels with lab-grade purity for optimal coral growth.
- • **Effortless Dosing Formula:** Easily prepare saturated solutions for controlled, drip-feed calcium supplementation.
- • **Precision pH Stabilization:** Maintain a stable, healthy pH environment (8.3–8.4) without compromising carbonate alkalinity.

## Overview

Seachem Reef Kalkwasser is a premium 2 kg calcium hydroxide powder designed to safely increase calcium levels in reef aquariums. It raises calcium by 24 mg/L per gallon of saturated solution added, while stabilizing pH between 8.3 and 8.4 without impacting carbonate alkalinity. Ideal for drip dosing in top-off water, it ensures optimal coral health and growth with minimal maintenance.

## Description

Product Description               Seachem Reef Kalkwasser 2K                  Directions               Never add this product directly to the tank. Add 3 g (1 teaspoon) to 4 L (1 US gallon) of water and mix to dissolve. If using pure water, a fully saturated solution is prepared by adding 6 g (2 teaspoons) to 4 L (1 US gallon). Drip this solution into tank. Monitor pH and carbonate alkalinity. Adjust rate of addition to maintain a stable pH (8.3–8.4). Notes: Adding 4 L (1 US gallon) of a saturated kalkwasser solution to 150 L (40 US gallons) will raise calcium by 24 mg/L. Always use the clear supernatant (top solution) only and do not allow undissolved material to enter the aquarium. Keep this container tightly closed when not in use and minimize solution/air contact to avoid calcium carbonate formation/precipitation.               
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                        Box Contains               water treatment             See more

## Features

- Very pure calcium hydroxide
- Ideal for increasing calcium in top-off water
- Increases pH with no impact on carbonate alkalinity

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Pet Type | Fish |
| Product Dimensions | 20.32 x 20.32 x 19.05 cm; 2.27 kg |
| Item model number | 399 |
| Pet Life Stage | All Life Stages |
| Item Form | Powder |
| Allergen Information | Yam Free |
| Colour | Multicolored |
| Size | 2 kg |
| Number of Items | 1 |
| Quantity | 1 |
| Specific Uses | Active |
| Batteries required | No |
| Batteries Included | No |
| Item Weight | 2.27 kg |

## Product Details

- **Brand:** Seachem
- **Liquid volume:** 4 Litres
- **Item weight:** 2.27 kg
- **Item form:** Powder
- **Manufacturer:** Seachem

## Images

![Reef Kalkwasser, 2 kg - Image 1](https://m.media-amazon.com/images/I/61xyHTfQmFL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Great product
  

*by J***C on Reviewed in the United States on 25 July 2020*

A must for any reefer

### ⭐⭐⭐⭐⭐ 







  
  
    As described, cheap bulk pricing
  

*by C***S on Reviewed in Australia on 19 August 2022*

Corals seem happy, this will last a while.

### ⭐⭐⭐⭐⭐ 







  
  
    Great stuff
  

*by B***N on Reviewed in the United States on 21 October 2019*

Definitely better to get in bulk

## Frequently Bought Together

- Reef Kalkwasser, 2 kg / 4.4 lbs
- Instant Ocean Reef Crystals Reef Salt, Formulated Specifically For Reef Fish Tank Aquariums
- ESV B-Ionic Calcium Buffer System, 2-part Calcium and Alkalinity Maintenance Kit for Salt Water Coral Reef Aquarium, 2-Gallon

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**Shop now:** [https://www.desertcart.bo/products/59392549-reef-kalkwasser-2-kg](https://www.desertcart.bo/products/59392549-reef-kalkwasser-2-kg)

---

*Product available on Desertcart Bolivia*
*Store origin: BO*
*Last updated: 2026-02-28*