TETRA CO2 depot refill system

Tetra CO2 Depot Refill System for the CO2 Optimat system

Tetra CO2 Depot Refill System is a carbon dioxide refill bottle for the Tetra CO2 Optimat system. It is a practical replacement bottle for planted aquarium CO2 fertilization when the original CO2 bottle has been used and the system needs to continue without purchasing a complete new set.

Carbon dioxide is an important nutrient for aquatic plants. When plants receive enough light, nutrients and CO2, they can photosynthesize more efficiently, grow stronger and compete better with algae. Tetra CO2 Depot Refill helps keep the Tetra CO2 Optimat system running and supports balanced plant growth in freshwater aquariums.

Benefits

• Refill bottle for the Tetra CO2 Optimat system
• Extends CO2 fertilization without buying a complete new set
• Supports aquatic plant growth and photosynthesis
• Helps plants use nutrients more efficiently
• Strong plant growth helps compete with algae
• Suitable for freshwater planted aquariums
• Easy solution for maintaining the CO2 Optimat system

Product features

• Product: Tetra CO2 Depot Refill System
• Use: CO2 refill bottle for planted aquariums
• Compatibility: Tetra CO2 Optimat system
• Content: approximately 11 g / 650 ml CO2
• Yield: approximately 50 fillings for the Tetra CO2 diffusion tube
• Suitable for: freshwater aquariums and planted aquariums
• Product type: pressurized CO2 refill bottle

Recommended use

Tetra CO2 Depot Refill is suitable for aquariums using the Tetra CO2 Optimat system for aquatic plant CO2 fertilization. It is intended to replace an empty CO2 bottle and keep the system operational without replacing the full CO2 set.

Who is this product for?

This product is suitable for planted aquarium hobbyists who use the Tetra CO2 Optimat system and want to continue CO2 supplementation easily. The refill bottle is a good choice for beginners using a simple CO2 solution and for hobbyists with small or medium freshwater planted aquariums.

Use in a planted aquarium

CO2 works best when lighting, nutrients and water circulation are balanced. If there is strong lighting but too little CO2, plant growth may slow down and algae can benefit. Tetra CO2 Depot Refill helps keep the CO2 Optimat system in use so plants receive carbon dioxide regularly for healthier growth.

How to use

Use Tetra CO2 Depot Refill only with a compatible Tetra CO2 Optimat system. Replace or refill the system according to the manufacturer’s instructions. Dose CO2 according to the system instructions and monitor plant growth, fish behavior and overall aquarium balance.

Safety and storage

Tetra CO2 Depot Refill is a pressurized container. Keep it away from heat, direct sunlight, sparks, open flames and other ignition sources. Do not pierce or burn the container, even after use. Do not expose the product to temperatures above 50 °C. Keep out of reach of children and use only for aquarium purposes according to the manufacturer’s instructions.

Why choose Tetra CO2 Depot Refill System?

Tetra CO2 Depot Refill System is a practical choice when you want to continue using the Tetra CO2 Optimat system and support planted aquarium growth without purchasing a new complete system. It helps maintain carbon dioxide availability for aquatic plants and supports healthier, greener and more balanced plant growth.