AQ 402 with CO2 injection system

[ddoan]

There is an air intake near the outflow of the aq 402. Can I use this to as a reactor with a CO2 system or do I need more time for the CO2 to mix with the water? I was also thinking about putting an air stone in the uptake tube of the ugf that goes to the aq 402. Would this be better?

Thanks,
Don

[djlen]

Are you referring to a 402 power head?
If so, you can inject through that right from the bottom of the power head. Then use a small siphon tube with a sponge in it as a reactor. It will give you a fine mist of CO2 which my guess is about 90 - 95% absorption.

Len