Tropica CO2 System Bio 60 days Options:CO2 Bio Kit pH is the measure of

pH is the measure of the acidity or alkalinity of the water in your aquarium

Designed to hold enough food for up to 60 feeds

Dragon Wrasse

Unlike the vast majority of circulation pumps which uses alternating current (AC)

Moderate - aggressive

Tropica CO2 System Bio 60 days Options:CO2 Bio Kit pH is the measure ofTropica CO2 System Bio CO2 is the most important nutrient for plants. Without a CO2 supply, the plants will not thrive. CO2 System Bio is a simple solution that adds extra CO2 to the plants in the aquarium. We recommend 20 25 C for the best use of the product. For improved growth of easy and medium plants 60 days CO2 for a low cost Safe to use Easy to refill and recycle Both the BIO system and BIO refill includes enough CO2 for approx. 60 days usage.