---
product_id: 45002185
title: "Crystal Cal Activated Carbon – 1 Gallon, Activated Charcoal for Aquariums and Fish Tanks"
brand: "kolar labs"
price: "A$122"
currency: AUD
in_stock: true
reviews_count: 13
category: "Kolar Labs"
url: https://www.desertcart.com.au/products/45002185-crystal-cal-activated-carbon-1-gallon-activated-charcoal-for-aquariums
store_origin: AU
region: Australia
---

# Fast-acting clarity Universal filter fit Lab-grade purity Crystal Cal Activated Carbon – 1 Gallon, Activated Charcoal for Aquariums and Fish Tanks

**Brand:** kolar labs
**Price:** A$122
**Availability:** ✅ In Stock

## Summary

> 💧 Crystal-clear tanks, zero compromises.

## Quick Answers

- **What is this?** Crystal Cal Activated Carbon – 1 Gallon, Activated Charcoal for Aquariums and Fish Tanks by kolar labs
- **How much does it cost?** A$122 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/45002185-crystal-cal-activated-carbon-1-gallon-activated-charcoal-for-aquariums)

## Best For

- kolar labs enthusiasts

## Why This Product

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

## Key Features

- • **Simple, Precise Dosing:** Use 1 cup per 50 gallons with easy maintenance every 2-4 weeks—keeping your tank pristine with minimal effort.
- • **Versatile Compatibility:** Seamlessly integrates with reactors, canisters, intank, and hanging filters for effortless use.
- • **Optimized Granular Structure:** Engineered pore design ensures maximum adsorption and water flow in any filter type.
- • **Premium FCC-Certified Quality:** Crafted to Food Chemicals Codex standards for unmatched aquarium safety and performance.
- • **Overnight Water Transformation:** Eliminates cloudiness, odors, and discoloration by morning—no more waiting around.

## Overview

Kolar Labs Crystal Cal Activated Carbon delivers 3 lbs of laboratory-grade, FCC-certified activated charcoal designed specifically for aquarium use. Its optimized granular structure ensures rapid removal of cloudiness, odors, and discoloration overnight. Compatible with all filter types, it offers easy dosing and maintenance, making it the trusted choice for professional-grade aquarium water treatment.

## Description

desertcart.com : Kolar Labs Crystal Cal Activated Carbon – 1 Gallon, Activated Charcoal for Aquariums and Fish Tanks : Pet Supplies

Review: Did the job and great bulk value - Bombed my tank for worms. The value on this jar was great. 3 lbs. The worm treatment wanted me to use 1 lb per 50 gallons. Soni sued 2 lbs and have another lb or so for emergency. Make sure to give it a good rinse. As you would for any activated carbon.
Review: Great value - Great value--lasted a couple of years for our 20-gallon tank. Did the job! With a name like Kolar--it's gotta be excellent! (My former surname). :}

## Features

- CONTAINS 3 lbs (1.3 kg) - FAST RESULTS: Works quickly to eliminate cloudy water, colors and odors overnight – guaranteed
- TRUSTED SOURCE: Made according to Food Chemicals Codex (FCC) standards; Bringing you the highest quality, bulk and packaged Activated Carbon
- HIGH PERFORMANCE: Laboratory grade granular activated carbon; Specifically made with optimum pore structure for aquarium use
- WORKS IN ALL FILTERS: Large granules allow great flow in any filter media bag, cartridge or filter for efficient filtration; Use in reactors, canister filters, intank filters or hanging filters
- EASY TO USE: Use 1 cup per 50 gallons (1 tablespoon for every 3 gallons); Change every 2-4 weeks; Short rinse before use

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06W9NJJ1D |
| ASIN  | B06W9NJJ1D |
| Age Range Description | Adult |
| Best Sellers Rank | #22,519 in Pet Supplies ( See Top 100 in Pet Supplies ) #229 in Aquarium Filter Accessories |
| Brand Name | Kolar Labs |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,397) |
| Date First Available | February 19, 2017 |
| Date First Available  | February 19, 2017 |
| Directions | Use 1 cup per 50 gallons (1 tablespoon for every 3 gallons); Change every 2-4 weeks; Short rinse before use |
| Is Discontinued By Manufacturer  | No |
| Item Package Dimensions L x W x H | 10.12 x 5.79 x 5.79 inches |
| Item Weight | 1.3 Kilograms |
| Item model number | CC 1 Gal |
| Item model number  | CC 1 Gal |
| Manufacturer | Calgon Carbon |
| Manufacturer  | Calgon Carbon |
| Package Dimensions  | 10.12 x 5.79 x 5.79 inches; 2.87 Pounds |
| Size | 1.3 kg (Pack of 1) |
| Target Audience Keyword | fish |

## Product Details

- **Brand:** Kolar Labs
- **Item Form:** Granules, Liquid
- **Item Weight:** 1.3 Kilograms
- **Liquid Volume:** 1 Gallons
- **Manufacturer:** Calgon Carbon

## Images

![Crystal Cal Activated Carbon – 1 Gallon, Activated Charcoal for Aquariums and Fish Tanks - Image 1](https://m.media-amazon.com/images/I/71gg24mOqfL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Did the job and great bulk value
*by D***K on January 4, 2026*

Bombed my tank for worms. The value on this jar was great. 3 lbs. The worm treatment wanted me to use 1 lb per 50 gallons. Soni sued 2 lbs and have another lb or so for emergency. Make sure to give it a good rinse. As you would for any activated carbon.

### ⭐⭐⭐⭐⭐ Great value
*by 2***T on November 25, 2025*

Great value--lasted a couple of years for our 20-gallon tank. Did the job! With a name like Kolar--it's gotta be excellent! (My former surname). :}

### ⭐⭐⭐⭐⭐ Great Product
*by L***S on August 17, 2025*

Great Product

## Frequently Bought Together

- Kolar Labs Crystal Cal Activated Carbon – 1 Gallon, Activated Charcoal for Aquariums and Fish Tanks
- Kolar Labs GFO Bayoxide E33 Phosphate Remover – for Freshwater and Saltwater Aquariums, Reef Tanks, Promotes Coral Health (454g)
- Geiserailie 15 Pieces Aquarium Filter Media Bags 150 Micrometer Fine Filter Bags Mesh Reusable with Zipper for Activated Carbon Resins(5.5 x 7.9 Inch,Nylon)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-21*