Re: Aquatic Plants Digest V1 #8

> Concerning the LaMotte CO2 test kit, I have a question about
> when it's officially turned pink. The instructions
> says you're done when you start seeing pink. Well, mine will start off
> with a very slight shade of pink and work it's way up as I continue
> adding the drops. I was hoping for a whoosh color change like most
> tritration. Should I stop at the first sign of pink? Thanks.

I stop when I can first detect any amount of pink and it stays faintly
pink for 30 seconds. I get good correlation with the pH/KH/CO2 tables 
that way.