# sera CO2 Start CO2 Fertilization System for Aquariums

**URL:** https://aio.lv/en/product--sera-14100--10880673
**Data updated:** 2026-06-12 15:54 (EEST)
**Category:** Aquarium Supplies
**Manufacturer:** sera
**Manufacturer code:** 14100
**EAN:** 4001942080392
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 29.49 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 24.37 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sera-14100--10880673

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

The sera CO2 Start is a complete CO2 fertilization system designed for small to medium-sized aquariums. It provides essential carbon dioxide to promote healthy and lush aquatic plant growth. The set includes a CO2 diffuser and a CO2 supply unit, ensuring easy installation and efficient gas distribution. Ideal for hobbyists looking to improve plant vitality and maintain a balanced ecosystem in their freshwater aquarium.

## Long description

The sera CO2 Start is a comprehensive CO2 fertilization system specifically engineered for small to medium-sized freshwater aquariums. This system provides a reliable and efficient method for supplying essential carbon dioxide to aquatic plants, which is a critical factor for photosynthesis and healthy growth. By integrating a specialized CO2 diffuser and a supply unit, the system ensures that carbon dioxide is dissolved effectively into the water column, helping to maintain optimal conditions for lush plant development and a balanced aquarium ecosystem.
Advantages
This fertilization system offers a straightforward approach to plant care, making it an excellent choice for both beginners and experienced hobbyists. The compact design allows for discreet placement within the aquarium, while the efficient diffusion mechanism minimizes gas waste and ensures maximum absorption by the plants. By providing a consistent supply of CO2, the system helps prevent nutrient deficiencies, leading to more vibrant colors and stronger growth in aquatic vegetation. Furthermore, the system is designed for easy installation and maintenance, requiring minimal intervention to keep the aquarium environment stable and healthy.
Suitable for
Small to medium-sized freshwater aquariums
Aquariums with live aquatic plants
Hobbyists seeking to improve plant vitality and growth rates
Maintaining a balanced carbon dioxide level in planted tanks
When it may not be suitable
This system is not intended for use in very large aquariums or high-tech planted tanks that require precise, automated CO2 injection systems with solenoid valves and pH controllers. It is also not suitable for saltwater or marine aquariums, as the requirements for these environments differ significantly from freshwater plant-based setups.
Key specifications
Complete CO2 fertilization system
Includes CO2 diffuser and supply unit
Designed for freshwater use
Compact and easy-to-install components
How to use
To set up the sera CO2 Start, first ensure the aquarium is clean and the equipment is positioned according to the instructions. Connect the CO2 supply unit to the diffuser using the provided tubing, ensuring all connections are secure to prevent leaks. Place the diffuser in an area with good water circulation to facilitate even distribution of the gas throughout the tank. Monitor the plant growth and the overall health of the aquarium inhabitants regularly to ensure the CO2 levels are appropriate for your specific setup.
What to consider before purchase
Check the volume of your aquarium to ensure it falls within the recommended range for this system
Verify that your aquarium is a freshwater setup
Ensure you have space for the diffuser and supply unit inside or near the tank
Usage recommendations
Regularly check the CO2 supply levels and clean the diffuser periodically to prevent clogging, which ensures consistent gas diffusion and optimal plant health.

## FAQ

### How much does the sera CO2 Start CO2 Fertilization System cost, and is it available for purchase?

The price is 29.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 14.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All sera products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized sera service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/10880673/60311737_large.webp