[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [APD] Flourish iron & KH drop
This seems to have prompted responses concerning the value of pH
controllers in CO2 systems!!
Regardless of that, it would seem to be undesirable to have a rapidly
reducing KH (from 9deg --> ~2deg in just under 2 weeks).
Do those of you who use Flourish Iron compensate for this by some other
>I just started using Flourish iron &, after a while, I noticed that my
plants had stopped pearling.
>I have injected CO2 & 330W of CF lighting in a 50g.
>I then noticed that, as I added a capful of Flourish iron, my pH dropped
>I tested my KH & found that, over a period of several days, my KH had
dropped from 160ppm to 50ppm.
>The reason the pearling had stopped was that my CO2 controller (set to pH
= 7.3) was no longer injecting CO2!!
>I added a few teaspoons of Sodium Bicarbonate to raise the KH &
everything returned to normal.
>I just did a quick test ...
>My tapwater has a KH of 180ppm. I added 5ml of Flourish iron to 2L of
tapwater & waited 30m.
>The KH had dropped to 140ppm.
>Has anyone else had this problem?
Aquatic-Plants mailing list
Aquatic-Plants at actwin_com