---
product_id: 263417475
title: "Reef Complete Liquid ionic Calcium Source, 500 ml"
brand: "seachem"
price: "€ 40.43"
currency: EUR
in_stock: true
reviews_count: 5
category: "Seachem"
url: https://www.desertcart.fr/products/263417475-reef-complete-liquid-ionic-calcium-source-500-ml
store_origin: FR
region: France
---

# 100% soluble for instant bioavailability 160,000 mg/L ionic calcium concentration Liquid form for precise dosing Reef Complete Liquid ionic Calcium Source, 500 ml

**Brand:** seachem
**Price:** € 40.43
**Availability:** ✅ In Stock

## Summary

> 💎 Elevate your reef game with crystal-clear calcium power!

## Quick Answers

- **What is this?** Reef Complete Liquid ionic Calcium Source, 500 ml by seachem
- **How much does it cost?** € 40.43 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/263417475-reef-complete-liquid-ionic-calcium-source-500-ml)

## 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

- • **Instant Solubility:** 100% soluble formula ensures rapid absorption—no residue, no guesswork.
- • **Coral-Ready Formula:** Optimized for quick and easy integration, supporting vibrant coral growth effortlessly.
- • **Trusted by Aquarists:** Backed by 720+ reviews and a 4.7-star rating—join the reef care elite.
- • **Precision Liquid Dosing:** Easily tailor calcium levels with a convenient liquid form for small or large tanks.
- • **Ultra-High Ionic Calcium:** Boost your reef’s vitality with 60% more calcium than standard supplements.

## Overview

Seachem Reef Complete is a premium 500 ml liquid ionic calcium supplement delivering 160,000 mg/L calcium—60% higher than typical products. Its 100% soluble formula guarantees rapid uptake, making it ideal for maintaining optimal coral health and vibrant reef ecosystems. Trusted by thousands of aquarists, it’s the go-to solution for precise, hassle-free calcium dosing in marine tanks.

## Description

Product Description Seachem Reef Complete 500Ml Set Contains: water treatment

Review: Quick and easy to tank of corals
Review: Easy to add for small reef tanks

## Features

- Liquid ionic calcium source
- 160,000 mg/L vs. 100,000 mg/L
- 100% soluble.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000256976 |
| Allergen Information | Allergen-Free |
| Best Sellers Rank | #47,201 in Pet Supplies ( See Top 100 in Pet Supplies ) #410 in Fish Medication & Health Supplies |
| Brand | Seachem |
| Brand Name | Seachem |
| Customer Reviews | 4.7 out of 5 stars 720 Reviews |
| Global Trade Identification Number | 00000116033305 |
| Included Components | water condiditoner |
| Item Form | Liquid |
| Item Type Name | water conditioner |
| Item Weight | 0.6 Kilograms |
| Item form | Liquid |
| Item height | 2.3 inches |
| Item weight | 0.6 Kilograms |
| Liquid Volume | 500 Milliliters |
| Liquid volume | 500 Milliliters |
| Manufacturer | Seachem |
| Target Species | Fish |
| UPC | 015568976964 000116033305 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Seachem
- **Liquid volume:** 500 Milliliters
- **Item weight:** 0.6 Kilograms
- **Item form:** Liquid
- **Manufacturer:** Seachem

## Images

![Reef Complete Liquid ionic Calcium Source, 500 ml - Image 1](https://m.media-amazon.com/images/I/715iiJ0uezL.jpg)

## Questions & Answers

**Q: I have an activated carbon reactor, will the reactor remove this stuff?**
A: I don't know the answer but I shut my off for a few hours.

**Q: What distinguishes this from their regular calcium additive?**
A: It's more than just calcium. It has all the elements of saltwater mixes. You use Reef Plus with this, and your saltwater tank gets the added vitamins and amino acids it needs to be healthy.

**Q: Seachem reef calcium. will it help strengthen the shell of my freshwater turtle? i have a reeve’s turtle/chinese pond turtle.**
A: Made for saltwater! Need better foods for your turtle. Pond turtles don't need calcium supplements because it's usually in the water if you do water replacements!

**Q: My calcium (159) and magnesium (870) levels are low in my nano 13.5g saltwater tank. Will this boost both or do I also need a magnesium additive?**
A: Water changes work better than anything in these smaller tanks. Is this a hard coral tank? I use Seachem Reef Complete and Reef Plus together. If its a coral tank and not a fish tank, then make sure your using a reef salt mix with those extra additives. You can also add Reef Rubble pieces to keep your levels up in between water changes. Smaller tanks need more water changes because things change quicker with less space.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quick and easy to tank of corals
*by J***N on 6 September 2025*



### ⭐⭐⭐⭐⭐ Easy to add for small reef tanks
*by C***H on 18 February 2024*



### ⭐⭐⭐⭐⭐ This stuff works!
*by H***N on 13 June 2022*



## Frequently Bought Together

- Seachem Reef Complete 500ml
- Seachem Reef Plus 500ml
- Seachem Reef Carbonate 500ml

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-01-31*