---
product_id: 389310867
title: "Brightwell Aquatics Kalk+2 Kalkwasser Supplement, 1.8 KG (4"
brand: "brightwell aquatics"
price: "¥40068"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/389310867-brightwell-aquatics-kalk-2-kalkwasser-supplement-1-8-kg-4
store_origin: JP
region: Japan
---

# 1.8 kg weight Supports reef life Advanced formula Brightwell Aquatics Kalk+2 Kalkwasser Supplement, 1.8 KG (4

**Brand:** brightwell aquatics
**Price:** ¥40068
**Availability:** ✅ In Stock

## Summary

> 🌟 Transform Your Aquarium with Kalk+2!

## Quick Answers

- **What is this?** Brightwell Aquatics Kalk+2 Kalkwasser Supplement, 1.8 KG (4 by brightwell aquatics
- **How much does it cost?** ¥40068 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/389310867-brightwell-aquatics-kalk-2-kalkwasser-supplement-1-8-kg-4)

## Best For

- brightwell aquatics enthusiasts

## Why This Product

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

## Key Features

- • **Easy to Use:** Powder form for simple mixing and application.
- • **Elevate Your Reef:** Kalk+2 combines calcium, strontium, and magnesium for optimal coral growth.
- • **All-in-One Solution:** No added chlorides—just pure, reef-friendly ingredients.
- • **Precision pH Control:** Maintains your aquarium's pH within the ideal range effortlessly.
- • **Suitable for All Stages:** Perfect for every aquatic life stage, from juvenile to adult.

## Overview

Brightwell Aquatics Kalk+2 is a premium Kalkwasser supplement designed to enhance the health of your reef aquarium. Weighing 1.8 kg, this advanced powdered formula includes calcium hydroxide, strontium hydroxide, and magnesium hydroxide, providing essential nutrients in the ideal ionic ratios for reef-building invertebrates. It helps maintain alkalinity and pH levels without introducing harmful elements, making it a must-have for any serious aquarist.

## Description

Brightwell Aquatics Kalk+2 Kalkwasser Supplement, 1.8 KG (4

## Features

- Kalk+2 is an advanced Kalkwasser powdered supplement enhanced to include not only the traditional calcium hydroxide, but strontium hydroxide and magnesium hydroxide also.
- 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 48.26 x 30.18 x 15.57 cm; 1.8 kg |
| Item model number | KALK1.8KG |
| Pet Life Stage | All Life Stages |
| Item Form | Powder |
| Allergen Information | Sulphites Free |
| Size | 1.8-kg |
| Quantity | 1 |
| Specific Uses | Behavior |
| batteries required | No |
| Batteries Included | No |
| Item Weight | 1.8 Kilograms |

## Product Details

- **Brand:** Brightwell Aquatics
- **Liquid volume:** 4 Liters
- **Item weight:** 1.8 Kilograms
- **Item form:** Powder
- **Target species:** Fish

## Images

![Brightwell Aquatics Kalk+2 Kalkwasser Supplement, 1.8 KG (4 - Image 1](https://m.media-amazon.com/images/I/91O0UlIII7L.jpg)
![Brightwell Aquatics Kalk+2 Kalkwasser Supplement, 1.8 KG (4 - Image 2](https://m.media-amazon.com/images/I/810NQ+UJHnL.jpg)
![Brightwell Aquatics Kalk+2 Kalkwasser Supplement, 1.8 KG (4 - Image 3](https://m.media-amazon.com/images/I/91q1tRmYZKL.jpg)
![Brightwell Aquatics Kalk+2 Kalkwasser Supplement, 1.8 KG (4 - Image 4](https://m.media-amazon.com/images/I/51B6N8sPM-L.jpg)
![Brightwell Aquatics Kalk+2 Kalkwasser Supplement, 1.8 KG (4 - Image 5](https://m.media-amazon.com/images/I/41zRejFhJWL.jpg)

## Frequently Bought Together

- Brightwell Aquatics Kalk+2 - Advanced Calcium, Magnesium & Strontium Powdered Kalkwasser Supplement for Marine Fish and Aquariums
- Daechun(Choi's1) Roasted Seaweed, GIM (100+100 Full Sheets), Value Pack, Resealable, Gold Grade, Product of Korea

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**Shop now:** [https://www.desertcart.jp/products/389310867-brightwell-aquatics-kalk-2-kalkwasser-supplement-1-8-kg-4](https://www.desertcart.jp/products/389310867-brightwell-aquatics-kalk-2-kalkwasser-supplement-1-8-kg-4)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-12*