Skip to content
Sera Co2-Start

Sera Co2-Start

21,99 - 21,99
21,99
22,89
22,89 - 22,89
22,89

Simple CO₂ fertilization system for aquariums up to 120 liters — also for beginners

Sera CO₂-Start — incl. CO₂ diffusion reactor and CO₂-Tabs plus

✅ Level: Easy — Simple to install and use. No prior knowledge required.

Carbon dioxide (CO₂) is the basic nutrient for aquarium plants and enables the establishment of a slightly acidic pH value — ideal for many plants and fish. The Sera CO₂-Start system has been specially developed for aquariums up to approx. 120 liters and consists of an optically discreet CO₂ diffusion reactor and the corresponding CO₂-Tabs plus. Easy to install and operate, even by beginners without prior knowledge.

🌿 Product specifications

Type CO₂ fertilization system
Suitable for Aquariums up to approx. 120 liters
Content CO₂ diffusion reactor + CO₂-Tabs plus
Installation Easy — no prior knowledge needed
Effect Promotes plant growth, slightly acidic pH
Brand Sera

🚚 Delivery & warranty

  • Fast delivery from our store — ready to use immediately
  • Shipping Tuesday or Friday → Read more about shipping
  • Delivery with track & trace, usually within 1–2 business days
  • Problem with your order? We will solve it together. Contact us via our customer service.
  • Free shipping from €59,-

✂️ Usage tips

Install the diffusion reactor in a place with good water flow for optimal CO₂ distribution. Add the CO₂-Tabs plus according to the dosage instructions on the packaging. Combine with Sera Florena for complete plant nutrition — CO₂ for growth, Florena for nutrients.

💡 Tip

Monitor the pH value when using CO₂ fertilization. A slight drop in pH is normal and beneficial for many plants and fish. Ensure the pH does not drop below 6.5.

❓ Frequently asked questions

For what aquarium volume is the CO₂-Start suitable?
The system is ideal for aquariums up to approx. 120 liters. For larger aquariums, more powerful CO₂ systems are recommended.

Is the system difficult to install?
No — the Sera CO₂-Start is specially designed for easy installation, even by beginners without prior knowledge.

Are the CO₂-Tabs available separately?
Yes — Sera CO₂-Tabs plus are available separately as refills for the CO₂-Start system.

Do you have another question? Feel free to contact us — we are happy to help you make the right choice for your aquarium.

Why Aquariumplantenshop.nl?

  • Largest range of aquarium plants in the Benelux
  • All orders are shipped with PostNL
  • Always with track & trace code via email
  • Visiting our store is possible 6 days a week