---
product_id: 59392453
title: "Seachem Reef Kalkwasser, 500 g"
brand: "seachem"
price: "₱4898"
currency: PHP
in_stock: true
reviews_count: 13
category: "Seachem"
url: https://www.desertcart.ph/products/59392453-seachem-reef-kalkwasser-500-g
store_origin: PH
region: Philippines
---

# Boosts calcium levels precisely Raises pH without altering alkalinity 99.9% pure calcium hydroxide Seachem Reef Kalkwasser, 500 g

**Brand:** seachem
**Price:** ₱4898
**Availability:** ✅ In Stock

## Summary

> 🌊 Elevate your reef game with crystal-clear calcium control!

## Quick Answers

- **What is this?** Seachem Reef Kalkwasser, 500 g by seachem
- **How much does it cost?** ₱4898 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/59392453-seachem-reef-kalkwasser-500-g)

## 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

- • **Pure & Powerful:** Ultra-pure formula ensures no unwanted contaminants
- • **pH Balance Mastery:** Increases pH while preserving carbonate alkalinity for reef stability
- • **Safe Handling Reminder:** Use with care—protect skin, eyes, and respiratory health
- • **Trusted Reef Essential:** Preferred by pros for maintaining vibrant saltwater aquariums
- • **Precision Calcium Boost:** Easily dissolve 5g per 100mL for controlled dosing

## Overview

Seachem Reef Kalkwasser is a premium 500g powder of ultra-pure calcium hydroxide designed to precisely increase calcium levels and pH in saltwater aquariums without affecting carbonate alkalinity. Trusted by reef enthusiasts, it supports healthy coral growth and stable water chemistry when dosed carefully.

## Description

Product Description Seachem Reef Kalkwasser 500G Ingredients calcium hydroxide Directions Dissolve 5 g of Reef Kalkwasser in 100 mL of distilled water. Add this solution to the aquarium gradually, mixing well. Perform regular calcium tests and adjust dosage as needed. Avoid direct sunlight exposure and keep out of reach of children and pets. Box Contains water treatment

Review: Does what it says - Does what it says
Review: 5 star as always with seachem - I use seachem products daily. Cannot go wrong with this brand when it comes to your saltwater aquarium.

## Features

- Causes serious eye damage.
- Causes skin irritation.
- May cause respiratory irritation.
- Very pure calcium hydroxide
- Ideal for increasing calcium in top-off water
- Increases pH with no impact on carbonate alkalinity

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002A5WOW |
| Allergen Information | Yam Free |
| Best Sellers Rank | 74,458 in Pet Supplies ( See Top 100 in Pet Supplies ) 779 in Aquarium Water Treatments |
| Brand | Seachem |
| Brand Name | Seachem |
| Country Of Origin | China |
| Customer Reviews | 4.6 out of 5 stars 451 Reviews |
| Global Trade Identification Number | 00000116039703 |
| Included Components | Water conditioner |
| Item Form | Powder |
| Item Type Name | Seachem Reef Kalkwasser, 500 g |
| Item Weight | 0.43 Kilograms |
| Item form | Powder |
| Item weight | 0.43 Kilograms |
| Liquid Volume | 2 Litres |
| Liquid volume | 2 Litres |
| Manufacturer | Seachem |
| Manufacturer Part Number | 116039703 |
| Model Number | 116039703 |
| Pet Type | Fish |
| Product Warranty | 2 year |
| Target Species | Fish |
| UPC | 716184594715 000116039703 |
| Unit Count | 500.0 gram |
| Unit count | 500.0 gram |

## Product Details

- **Brand:** Seachem
- **Item form:** Powder
- **Item weight:** 0.43 Kilograms
- **Liquid volume:** 2 Litres
- **Manufacturer:** Seachem

## Images

![Seachem Reef Kalkwasser, 500 g - Image 1](https://m.media-amazon.com/images/I/81maDbpKu0L.jpg)
![Seachem Reef Kalkwasser, 500 g - Image 2](https://m.media-amazon.com/images/I/81hzbcRuwLL.jpg)
![Seachem Reef Kalkwasser, 500 g - Image 3](https://m.media-amazon.com/images/I/81+T-yQJcNL.jpg)
![Seachem Reef Kalkwasser, 500 g - Image 4](https://m.media-amazon.com/images/I/91pqhrcjqFL.jpg)
![Seachem Reef Kalkwasser, 500 g - Image 5](https://m.media-amazon.com/images/I/61N7NIje0zL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Does what it says
*by G***R on 30 August 2025*

Does what it says

### ⭐⭐⭐⭐⭐ 5 star as always with seachem
*by J***G on 11 May 2025*

I use seachem products daily. Cannot go wrong with this brand when it comes to your saltwater aquarium.

### ⭐⭐⭐⭐⭐ Great
*by O***K on 1 April 2025*

Perfect

## Frequently Bought Together

- Seachem Reef Kalkwasser 500gram
- Polyp Lab Nano Reef-Roids Coral Food - 37g
- Seachem Reef Complete 500ml

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**Shop now:** [https://www.desertcart.ph/products/59392453-seachem-reef-kalkwasser-500-g](https://www.desertcart.ph/products/59392453-seachem-reef-kalkwasser-500-g)

---

*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-07-08*