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Re: preventing mold growth in fertilizer via acid of some type...
- To: <Aquatic-Plants at actwin_com>
- Subject: Re: preventing mold growth in fertilizer via acid of some type...
- From: "John W. Lemons III" <john at johnlemons_com>
- Date: Thu, 11 Oct 2001 19:26:37 -0700
- Importance: Normal
- In-Reply-To: <200110111948.f9BJm5c26066 at actwin_com>
>The mold is growing on the organic chelating agent, which is probably EDTA.
>I use iron DPTA, and have a mold problem with that chelating agent, too.
>I tried hydrochloric acid, but when I used enough to inhibit the mold, it
>precipitated out a good deal of the iron DPTA. I found that I could kill
>the mold and sterilize the solution by heating the solution to boiling.
Currently, I'm mixing and tweaking this solution on a weekly basis until I
get a feel for what the right formulations will end up beign for my tank.
I might try boiling the solution, since that seems like a good and safe
solution to the problem, I would like to find a solution that minimizes
the effort involved. Since the solution is very dilute, I don't know if I
would have problems with precipitation should I lower the pH. However, I
appreciate the heads up, sice I didn't consider that. My best guess at this
point is that if I can get the pH down about 2 points, it would be enough
to stop growth. 'couse if this ruins the solution or causes lots of
precipitation, its kind of a wasted effort.