CO2 Calculator
Calculate CO2 concentration from KH and pH values
dKH
Frequently Asked Questions
What is CO2 and why does it matter?
CO2 (carbon dioxide) is essential for plant photosynthesis in planted aquariums. The right amount helps plants grow quickly and stay healthy, but too much can harm fish.
What are ideal CO2 levels?
For planted aquariums, aim for 20-30 ppm CO2. Below 15 ppm, plants may struggle to grow. Above 35 ppm can stress or harm fish.
How do I measure KH and pH?
Use liquid test kits or digital meters to measure KH and pH. Test at the same time each day for consistent results, preferably in the morning before lights turn on.
How do I adjust CO2 levels?
If CO2 is too low, increase injection rate gradually. If too high, reduce injection, increase aeration, or do a water change. Always monitor fish behavior closely when making changes.