Colombo Co2, 12G Basic Set Refill

Colombo 12g Basic COx Set Refill

Keep your planted aquarium running smoothly with the Colombo 12g Basic COx Set Refill. Designed specifically for use with the Colombo Basic COx System, this replacement COx cartridge provides a simple and reliable way to continue supplying carbon dioxide to your plants.

Ideal for beginners and low- to medium-tech aquascapes, the 12g refill allows you to maintain healthy plant growth without the need for complex pressurised equipment. Quick to replace and easy to use, it ensures uninterrupted COx dosing when your original cartridge runs out.

Care & Use Instructions

• Replace the cartridge according to the manufacturer’s instructions

• Ensure the system is turned off before changing the refill

• Dispose of empty cartridges responsibly

• Store unused refills in a cool, dry place

• Monitor plant growth and aquarium response after replacement

Key Features

• 12g CO₂ cartridge refill for the Colombo Basic CO₂ Set

• Designed for easy replacement with no specialist tools required

• Provides a steady CO₂ supply for planted aquariums

• Ideal for low- to medium-tech setups

• Compact and convenient for regular use

• Genuine Colombo replacement product

Benefits

• Keeps plants growing healthy and vibrant

• Ensures continued CO₂ supply with minimal effort

• Affordable and beginner-friendly solution

• No complicated setup or adjustments required

• Perfect for maintaining stable aquarium conditions

Delivery Details

We aim to get all orders on a next day delivery service with Royal Mail or Parcel Force, occasionally Yodel, however this is not guaranteed. 

DELIVERY 
Free shipping orders over £50 (excludes certain items and delivery to Ireland)
1 - 3 working days 

Click & collect
Pick up in-store Free

Standard Shipping
1 - 3 working days £5.00