# CO2 dosing system Fluval Bio-CO2 Pro for aquariums up to 125 L, plant fertilization kit

**URL:** https://aio.lv/en/product--fluval-fv-84601--12059155
**Data updated:** 2026-03-12 19:42 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** Fluval
**Manufacturer code:** FV-84601
**EAN:** 015561184601
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 113.49 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 93.79 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--fluval-fv-84601--12059155

## 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

Fluval Bio-CO2 Pro is a compact CO2 dosing system designed for aquariums up to 125 liters to support aquatic plant growth. The kit provides regulated CO2 fertilization for planted tanks, helping improve photosynthesis and plant health. It is suitable for hobbyists seeking controlled carbon dosing for small to medium freshwater aquaria.

## Long description

Fluval Bio-CO2 Pro for aquariums up to 125 L is a compact CO2 dosing system designed to provide controlled carbon fertilization for planted freshwater tanks. The kit delivers a regulated CO2 supply to support photosynthesis and plant growth in small to medium aquaria, combining a small footprint with simple setup and operation. It is intended for hobbyists who need a reliable, low-maintenance carbon dosing solution for aquascaping and healthy aquatic plants.
Advantages
The Fluval Bio-CO2 Pro offers stable CO2 delivery in a compact unit that fits easily in or near most aquarium setups. Its regulated dosing mechanism helps maintain consistent carbon levels to promote even plant growth without complex adjustments. The system is engineered for quiet operation and minimal maintenance, reducing the frequency of refills and interventions while preserving water clarity and plant coloration.
Suitable for
Planted freshwater aquariums up to 125 liters
Beginners and intermediate hobbyists seeking controlled CO2 dosing
Small to medium aquascapes requiring improved plant growth and vigor
Low-tech and transitional setups where gradual CO2 enrichment is preferred
Key specifications
Recommended aquarium volume: up to 125 L
Application: CO2 dosing for aquatic plant fertilization
Design: compact unit for easy placement near the aquarium
Operation: regulated CO2 delivery for steady supply
Maintenance: low-maintenance refill and service requirements
How to use
Install the Fluval Bio-CO2 Pro following the included instructions, placing the unit in a stable position adjacent to or behind the aquarium. Connect the dosing line to the diffuser located inside the tank, adjust the regulator to achieve the recommended CO2 level for your plant species and stocking density, and verify dispersion with a drop checker or test kit. Monitor water parameters including pH, GH/KH and general plant condition during initial adjustments, and allow the system to run continuously to maintain stable carbon availability for photosynthesis.
Usage recommendations
For best results, gradually increase CO2 dosing after installation and observe plant response over several days. Use alongside routine water testing and appropriate macronutrient and micronutrient fertilization to ensure balanced growth. Avoid sudden large changes in CO2 levels and maintain good surface agitation during lights-off periods for oxygen exchange.

## FAQ

### How much does the Fluval Bio-CO2 Pro CO2 system for 125 L cost, and is it available for purchase?

The price is 113.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 11 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, Installment. All transactions are 100% secure and encrypted.

### Can Fluval Bio-CO2 Pro CO2 system for 125 L be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 Fluval 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 Fluval 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

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