---
product_id: 384041277
title: "Brightwell Aquatics Reef Code A - Balanced Calcium and Alkalinity System for Marine Fish & Reef Aquariums"
brand: "brightwell aquatics"
price: "Rp4883815"
currency: IDR
in_stock: false
reviews_count: 1
category: "Brightwell Aquatics"
url: https://www.desertcart.id/products/384041277-brightwell-aquatics-reef-code-a-balanced-calcium-and-alkalinity-system
store_origin: ID
region: Indonesia
---

# Mimics natural seawater Balanced Ca & Alk ratio Made in USA, pure formula Brightwell Aquatics Reef Code A - Balanced Calcium and Alkalinity System for Marine Fish & Reef Aquariums

**Brand:** brightwell aquatics
**Price:** Rp4883815
**Availability:** ❌ Out of Stock

## Summary

> 🌟 Elevate your reef’s vitality with science-backed balance!

## Quick Answers

- **What is this?** Brightwell Aquatics Reef Code A - Balanced Calcium and Alkalinity System for Marine Fish & Reef Aquariums by brightwell aquatics
- **How much does it cost?** Rp4883815 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/384041277-brightwell-aquatics-reef-code-a-balanced-calcium-and-alkalinity-system)

## 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

- • **Pure & Clean Formula:** Free from phosphates, silicates, and organics for crystal-clear water
- • **Easy Two-Part Dosing System:** Pairs seamlessly with Reef Code B for hassle-free maintenance
- • **Supports Vibrant Reef Ecosystems:** Boosts corals, clams, and calcareous algae health effortlessly
- • **Optimized for Professional Hobbyists:** Designed to prevent unwanted precipitation with magnesium tuning
- • **Precision Calcium & Alkalinity Balance:** Maintains natural seawater ratio for optimal reef growth

## Overview

Brightwell Aquatics Reef Code A is a liquid supplement designed to maintain the ideal calcium and alkalinity ratio found in natural seawater, essential for the healthy growth of reef-building organisms like corals and clams. Free from phosphates, silicates, and organic contaminants, this USA-made formula works best when paired with Reef Code B and magnesium levels are optimized, ensuring a stable, thriving marine aquarium environment.

## Description

This method of calcium and carbonate supplementation is advantageous to hobbyists interested in a simple and effective means of providing the very elements and molecules required for growth of reef-building organisms such as corals, clams, and their allies. Corals and other reef-building organisms require adequate and stable available calcium and alkalinity to thrive. Under most conditions, the mineral that is secreted as skeletal material is known as Aragonite, composed mostly of carbonate and calcium by weight. Reef-building organisms must extract these substances from the surrounding water in order to secrete new skeletal material for growth. By maintaining the same ratio of calcium ions and carbonates in an aquarium as that found in natural seawater, these organisms have the necessary building blocks available in the proper proportions, even if the hobbyist chooses to maintain higher concentrations of these substances. For maximum effectiveness of the Reef Cōde method, the magnesium concentration in reef aquaria should be adjusted to, and maintained between, 1, 290 - 1, 320 ppm before using these products (alone or together) or any other calcium and alkalinity products. Doing so helps prevent unwanted precipitation between calcium and carbonate ions. Additional information on this subject is available on our website and on the label for Brightwell Aquatics Magnesion. The rate at which calcium and carbonates are extracted from the water is determined by the stocking density of reef-building livestock, type of lighting, and other conditions; therefore, each aquarium will have different requirements for the rate of supplementation. Once the rate of calcium uptake in the aquarium has been determined, the proper dosing rate of this product can be easily calculated.

Review: Love there stuff

## Features

- Simplifies calcium and alkalinity maintenance in your aquarium tank
- The carbonate-bearing component of a two-part method for dosing calcium and carbonates in the same ratio as that found in natural seawater; to be used in conjunction with Reef Code B
- Benefits reef-building organisms such as corals, clams, and calcareous algae
- Contains no phosphate, silicate, or organic material; Made in the USA
- Contains no phosphate, silicate, or organic material.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B085PY97WL |
| Allergen Information | Sulphites Free |
| Batteries Included | No |
| Best Sellers Rank | #61,158 in Pet Supplies ( See Top 100 in Pet Supplies ) #517 in Aquariums |
| Customer Reviews | 4.8 4.8 out of 5 stars (22) |
| Date First Available | 30 October 2020 |
| Item Form | Liquid |
| Item Weight | 3.83 Kilograms |
| Item model number | RCA4L |
| Package Dimensions | 29.59 x 19.3 x 10.49 cm; 3.83 kg |
| Pet Life Stage | All Life Stages |
| Quantity | 1 |
| Size | 4-L |
| Specific Uses | Coat |
| batteries required | No |

## Product Details

- **Brand:** Brightwell Aquatics
- **Item form:** Liquid
- **Item weight:** 135.26 Ounces
- **Liquid volume:** 4 Liters
- **Manufacturer:** Brightwell Aquatics

## Images

![Brightwell Aquatics Reef Code A - Balanced Calcium and Alkalinity System for Marine Fish & Reef Aquariums - Image 1](https://m.media-amazon.com/images/I/61jCwbfjDmL.jpg)
![Brightwell Aquatics Reef Code A - Balanced Calcium and Alkalinity System for Marine Fish & Reef Aquariums - Image 2](https://m.media-amazon.com/images/I/810cnlVKoHL.jpg)
![Brightwell Aquatics Reef Code A - Balanced Calcium and Alkalinity System for Marine Fish & Reef Aquariums - Image 3](https://m.media-amazon.com/images/I/81IxQUNjpcL.jpg)
![Brightwell Aquatics Reef Code A - Balanced Calcium and Alkalinity System for Marine Fish & Reef Aquariums - Image 4](https://m.media-amazon.com/images/I/81SRbRqG8qL.jpg)
![Brightwell Aquatics Reef Code A - Balanced Calcium and Alkalinity System for Marine Fish & Reef Aquariums - Image 5](https://m.media-amazon.com/images/I/81X1D0TlPOL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by B***6 on 5 November 2024*

Love there stuff

## Frequently Bought Together

- Brightwell Aquatics - Reef Code A - Balanced Calcium & Alkalinity System Water Conditioner - For All Saltwater Marine Fish & Reef Fish Tanks - Aquarium Water Treatments, 135.2 fl oz
- Brightwell Aquatics - Reef Code B - Balanced Calcium & Alkalinity System Water Conditioner - for All Saltwater Marine Fish & Reef Fish Tanks - Aquarium Water Treatments, 135.2 fl oz
- Brightwell Aquatics Magnesion Liquid Salt Water Conditioner - Concentrated Magnesium Supplement For Reef and Marine Aquariums, 67.6 fl oz

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*Product available on Desertcart Indonesia*
*Store origin: ID*
*Last updated: 2026-01-25*