---
product_id: 51301516
title: "Reef Foundation B Alkalinity (KH) Supplement, 5 L - Boosts Carbonate Levels for Strong Coral Skeletons in Reef & Marine Aquariums"
brand: "red sea"
price: "VT71527"
currency: VUV
in_stock: true
reviews_count: 6
url: https://www.desertcart.vu/products/51301516-reef-foundation-b-alkalinity-kh-supplement-5-l-boosts-carbonate
store_origin: VU
region: Vanuatu
---

# Supports stable reef chemistry Precise alkalinity boost Enhances coral skeleton strength Reef Foundation B Alkalinity (KH) Supplement, 5 L - Boosts Carbonate Levels for Strong Coral Skeletons in Reef & Marine Aquariums

**Brand:** red sea
**Price:** VT71527
**Availability:** ✅ In Stock

## Summary

> 🌊 Elevate your reef’s foundation—stronger corals, stunning aquascapes!

## Quick Answers

- **What is this?** Reef Foundation B Alkalinity (KH) Supplement, 5 L - Boosts Carbonate Levels for Strong Coral Skeletons in Reef & Marine Aquariums by red sea
- **How much does it cost?** VT71527 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/51301516-reef-foundation-b-alkalinity-kh-supplement-5-l-boosts-carbonate)

## Best For

- red sea enthusiasts

## Why This Product

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

## Key Features

- • **Easy Integration:** Seamlessly blends into your reef system to maintain ideal alkalinity levels.
- • **Compact & Convenient:** 5L size designed for long-lasting use without frequent refills.
- • **Optimize Coral Growth:** Boost carbonate hardness (KH) for robust coral skeletons and vibrant reef life.
- • **Scientifically Tested:** Formulated and tested for safety to ensure a healthy marine aquarium environment.
- • **Professional Grade Quality:** Trusted by aquarists for consistent, reliable performance in marine setups.

## Overview

Red Sea Reef Foundation B Alkalinity Supplement is a 5L marine aquarium additive designed to precisely boost carbonate hardness (KH), essential for strong coral skeleton development and stable reef chemistry. Tested for safety and formulated for professional aquarists, it ensures optimal conditions for vibrant, healthy coral growth.

## Description

Red SeaReef Foundation B Alkalinity (KH) Supplement, 5 L - Boosts Carbonate Levels for Strong Coral Skeletons in Reef & Marine Aquariums

## Features

- Quality And Performance Driven Products For Your Pet
- Tested For Safety And Health
- Provide A Better Quality Of Living For Your Pet With Red Sea
- Package Dimensions: 4.96062992125984" L X 7.79527559055118" W X 11.4173228346457" H

## Product Details

- **Brand:** Red Sea
- **Liquid Volume:** 5 Liters
- **Item Weight:** 1 Pounds
- **Item Form:** Liquid
- **Target Species:** Ornamental Fish

## Images

![Reef Foundation B Alkalinity (KH) Supplement, 5 L - Boosts Carbonate Levels for Strong Coral Skeletons in Reef & Marine Aquariums - Image 1](https://m.media-amazon.com/images/I/71XtwFRr2mL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Received fresh product that expires in 2027 !
*by S***G on April 8, 2023*

I like Red Sea and the 5 liter bottles are a great savings! What I do not like is old product or product expiring very soon. Happy to report that this was very fresh product!

### ⭐⭐⭐⭐⭐ Authentic
*by I***E on June 18, 2020*

I only use about 30ml a day so this is still economical. I tried buying the powder on amazon and what I received was counterfeit (it was used, filled with baking soda, and resold). This container came sealed.

### ⭐⭐⭐⭐⭐ Arrived quickly and makes my corals happy.
*by  ***R on February 14, 2023*

Dosing our reef tank.

## Frequently Bought Together

- Red Sea Reef Foundation B Alkalinity (KH) Supplement, 5 L - Boosts Carbonate Levels for Strong Coral Skeletons in Reef & Marine Aquariums
- Red Sea Reef Foundation A (Ca/Sr) Supplement, 5 L - Calcium & Strontium Additive for Healthy Coral Growth in Marine & Reef Aquariums
- Red Sea Reef Foundation C Magnesium (Mg) Supplement, 5 L - Maintains Magnesium Balance for Healthy Corals in Marine & Reef Aquariums

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**Shop now:** [https://www.desertcart.vu/products/51301516-reef-foundation-b-alkalinity-kh-supplement-5-l-boosts-carbonate](https://www.desertcart.vu/products/51301516-reef-foundation-b-alkalinity-kh-supplement-5-l-boosts-carbonate)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-24*