CO2 Refill – biological CO2 replenishment

This set is intended for aquarists who run a CO2 system in a planted aquarium and want a steady, predictable CO2 supply from a biological source. It replaces the usual approach of mixing yeast and nutrients directly, which makes the output uneven over time.

Why it matters

• Gel mash structure: the nutrient mash is set in a gel, which prevents the yeast from mixing with the nutrient throughout the container.
• Controlled feeding: the yeast can reach the nutrient only through the top surface of the gel, so the mash is consumed gradually and evenly.
• Consistent CO2 production: because of this feeding method, the yeast releases the same amount of CO2 over the course of use.
• Long single batch: one prepared batch of gel mash is designed to last 50 days.

Specifications

• Brand: NEO MEDIA
• Model symbol: Neo CO2 uzupelnienie
• EAN: 8809702870254
• Weight: 0.49 kg
• Contents: biological refill, gel mash

What it works with

The product belongs to the CO2 systems category for aquariums and is intended for planted freshwater aquariums that use CO2 fertilisation. Tank volume and compatible equipment are not specified in the product data, so check them against your own setup before ordering.