Tropica CO2 System Bio Refill

CO2 System Bio Refill

CO2 is a crucial nutrient for plants. The plants will have a hard time thriving without a CO2 supply. Add extra CO2 to the plants in your aquarium with Tropica CO2 System Bio Refill. For best use of the product, a temperature range of 68- 77 degrees F is recommended. Includes: CO2 System Bio Refill only. For use with CO2 System Bio.