The Bio-CO2 Pro Refill Pack includes several pre-measured Activator yeast sachets and Booster tablets to quickly and conveniently kickstart the biological fermentation process in Fluval Bio- CO2 Pro systems.

Key Features:

Designed for use will all Fluval Bio- CO2 Pro Low-Pressure CO2 Systems
Produces CO2 within a short 24-hour period (when mixed with sugar - sold separately)
Each Refill pack includes: 4 Activator Yeast sachets and 4 Booster tablets
High-quality German Champagne yeast with stabilizers and nutrients for consistent quality
Pre-measured for simple and accurate dosing
Each Refill Pack provides long-lasting CO2 supply: Model 125 (up to 4 months), Model 250 (up to 2 months), Model 500 (up to 1 month)
Included:

Activator yeast packets x 4
Booster tablet packets x 4
Compatible with: A8460, A8463, A8466