Tag Archives: kh

Some Final Thoughts on Carbon Dioxide

by John Tullock Carbon dioxide is essential to plants, but a carbon dioxide system is not essential for some planted aquariums. Tanks with slow-growing, low light plants such as ferns and many species of Cryptocoryne do just fine without supplemental carbon dioxide. On the other hand, a large, brightly illuminated tank filled with fast-growing stem […]

Carbon Dioxide Part Two: Estimating Concentration

by John Tullock In Part One last week, I discussed the importance of carbon dioxide (CO2) in the planted aquarium, and described several types of equipment used for adding CO2 to improve plant growth. In this post, I will discuss how CO2 concentration can be estimated when the pH and alkalinity of the aquarium are […]