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Re: Aquatic Plants Digest V4 #91

>From: Aquatic-Plants-Owner at actwin_com (Aquatic Plants Digest)
>To: Aquatic-Plants at actwin_com
>Subject: Aquatic Plants Digest V4 #91
>Date: Sun, Feb 13, 2000, 12:48 AM

>I routinely maintain iron levels that test as about .5 mg/L.  I know other
>people report algae problems with iron levels this high.  But not only does
>it not cause algae problems in my tanks, I see clear signs of iron
>deficiency if I allow levels to reamian much lower than this for any length
>of time.  I'm not disputing other people's observations, but I think it's
>another one of those things where there's more to the story than meets the eye.

I got the same observations in some tanks. I was a bit sheepish about saying
so though<G>.
Source of iron may play a big old role here. TMG/Seachem/PMDD or bacterial
cycling in the substrate etc. 
Tom Barr