API CO2 Booster 16 oz Liquid Carbon Supplement
API CO2 Booster 16 oz is a liquid carbon supplement designed to support strong, healthy plant growth in freshwater planted aquariums. By providing an available source of carbon, API CO2 Booster helps aquarium plants grow stronger, develop healthier leaves, and compete more effectively against nuisance algae.
This easy-to-use liquid plant supplement is a simple alternative for hobbyists who do not want to use a pressurized CO₂ system. API CO2 Booster requires no extra equipment and can be used in freshwater planted tanks of many sizes when dosed as directed.
Key Features
- Provides a source of liquid carbon for live aquarium plants
- Helps support photosynthesis and healthy plant growth
- Encourages strong leaf and overall plant development
- Can help plants compete against nuisance algae
- Easy liquid dosing with no pressurized CO₂ system required
- Safe for freshwater fish and invertebrates when used as directed
- 16 oz bottle treats up to 4,800 gallons
Great For
- Freshwater planted aquariums
- Low-tech planted tanks
- Beginner aquascapes
- Community aquariums with live plants
- Shrimp and snail tanks when used carefully as directed
- Plant growth support without pressurized CO₂ equipment
Directions
Use 1 mL per 10 gallons of aquarium water daily or every other day, depending on plant load and aquarium needs. Always follow the directions on the bottle and avoid overdosing.
Product Details
- Brand: API
- Product: CO2 Booster Liquid Carbon Supplement
- Size: 16 oz / 473 mL
- Use: Freshwater planted aquariums
- Dosage: 1 mL per 10 gallons daily or every other day
- Treats: Up to 4,800 gallons
Frequently Asked Questions
Do I need a CO₂ injection system with API CO2 Booster?
No. API CO2 Booster provides a liquid carbon source, making it a simple alternative for hobbyists who do not want to use pressurized CO₂. High-tech planted tanks may still benefit from injected CO₂ depending on plant species, lighting, and growth goals.
Is API CO2 Booster safe for shrimp and snails?
API CO2 Booster is safe for freshwater fish and invertebrates when used as directed. Use caution in shrimp tanks and avoid overdosing, especially with sensitive livestock.
How often should I dose API CO2 Booster?
API CO2 Booster is commonly dosed daily or every other day depending on plant density, lighting, and aquarium needs. Follow the bottle directions for best results.
Can I use API CO2 Booster with other fertilizers?
Yes. API CO2 Booster can be used alongside API Leaf Zone, root tabs, and comprehensive liquid fertilizers. Carbon supports plant growth, while fertilizers provide nutrients such as iron, potassium, nitrogen, phosphorus, and trace elements.
Will API CO2 Booster prevent algae?
API CO2 Booster can help plants grow more actively, which may help them compete with algae. Algae is usually caused by an imbalance of light, nutrients, CO₂, maintenance, and water quality, so good aquarium care is still important.
Why Choose API CO2 Booster?
API CO2 Booster is a simple way to support freshwater aquarium plants without complicated CO₂ equipment. With regular dosing, it helps provide available carbon for plant growth, making it a useful addition to planted tank care.
Explore More Aquarium Products:
Low stock: 2 left
Couldn't load pickup availability

Explore Related Aquarium Products: