How do I test my co2 levels?

[trigoudarammi]

Do i have to buy some strips or something?

 

[skeletonhand]

You can download Chucks calculator here:

http://www.csd.net/~cgadd/aqua/art_plant_aquacalc.htm

You need to figure out the KH, DH, and pH of your water. You'll need a testing kit for these. Punch the numbers in the calculator and It'll tell you CO2 saturation in ppm.

 

[Rex Grigg]

You only need to know the kH and pH. gH doesn't matter.

 

[Mgamer20o0]

direct link.

http://www.csd.net/~cgadd/aqua/art_plant_co2chart.htm

 

[trigoudarammi]

So how do i measure the Kh??

 

[Mgamer20o0]

you need a test kit. i use the api tester. each drop = 1 degree when the water changes thats your kh. i think it goes from green to yellow or something like that without looking it up.

 

[BioFilter]

Just test the Kh(with the kit of course) and test the Ph. Then plug the numbers into the calculator as mentioned above. Dont test at night when the lights are out, or in the morning, wait until the lights have been on a few hours and the plants are kicking out co2.

 

[J double R]

Just test the Kh(with the kit of course) and test the Ph. Then plug the numbers into the calculator as mentioned above. Dont test at night when the lights are out, or in the morning, wait until the lights have been on a few hours and the plants are kicking out co2.

you mean, O2?