Description
Designed exclusively for use with the Tropica CO2 System BIO, the Tropica CO2 System BIO Refills deliver vital CO2 for planted aquariums and aquascape setups. Each Tropica BIO Refill delivers approximately 60 days of steady CO2 supply - giving your aquarium plants the carbon dioxide they need to flourish and thrive without the complexity of pressurised CO2 cylinders.
Whether you're nurturing a lush aquascape or maintaining a healthy planted aquarium, CO2 is the single most important factor for vibrant, fast-growing plants. When used in conjunction with the Tropica CO2 System BIO unit, the Tropica BIO Refill creates a simple, safe, and cost-effective CO2 solution, perfect for beginners and experienced aquascapers alike.
For best results, use alongside Tropica aquarium plant fertilisers and adequate aquarium lighting to create an underwater planted paradise.
Delivery Information
| Delivery Option | Price | Speed | Best For |
|---|---|---|---|
| Free Local Delivery (Thanet) | FREE | 1–2 working days | CT8, CT9, CT10, CT11, CT12 postcodes |
| Economy (Royal Mail) | From £2.99 | 2–3 working days | Small/light items |
| Standard Courier | From £6.50 | 1–2 working days | Most orders |
| Express AM | From £9.99 | Next working day (AM) | Urgent orders |
| Saturday Delivery | From £12.50 | Saturday | Weekend delivery |
| Pallet / Large Goods | From £65 / free on qualifying mainland UK orders | 2–6 working days | Aquariums & heavy items |
All orders are fully tracked. Next-day cut-off is 1pm. Scotland, Islands & Northern Ireland rates calculated at checkout.
Payment & Security
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