Most Accurate Way To Measure Co2

[Mikaila31]

I'm trying to use the kh and ph test kits along with a chart, but I can find a couple different charts and they all tell me something different. So now i'm confused . I also know their are co2 test kits, but I here mixed reviews on those. So what is the most accurate way to test the co2?

 

[sjdriscoll]

The most reliable way is with a drop checker, some 4dKH solution and some 'bromo-blue' pH reagent.

When the drop checker is green all is good. When it's blue or yellow things aren't so good.

Lots of threads on here about drop checkers.

Also try

http/www.aquaessentials.co.uk/index.php?...p;cPath=196_302

 

[lisa_perry75]

That link doesnt work for me. Actually I think Aqua Essentials (AE) is down.

I won't go into the whys or hows but what you need is 4 dkH solution and a test kit. Either something like the JBL permanent CO2 which is £12.99(?) but you may as well get a glass one from AE £14.99(?). The glass ones look much nicer and v. swish