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Re: stunted vals

>Date: Tue, 20 Mar 2001 22:33:37 -0700
>From: "Roger S. Miller" <rgrmill at rt66_com>
>Subject: stunted vals

So  Roger,  do you think that perhaps the cryptocorynes have a different
nutrient requirement than the vals?  They are growing choc a block with one
another, the crypts look fine but the vals are small.

>Next I added some Hagen PlantGro fertilizer.  The fertilizer label lists
>nitrogen (which according to my Tetra kit was building up in the tank
>anyway), potassium and magnesium (which I dose at water changes), iron
>(already tested) and phosphorus.  The plants started normal growth very
>soon after I added the PlantGro, so I concluded that the stunted growth
>was probably caused by a phosphorus deficiency.  Perhaps there was some
>other unlisted ingredient that cured the stunting.

I'm going to give a substrate fertilizer with PFK a try then and see how
things grow. Thanks for the suggestion.  Because the crypts look fine I
didn't think there could be a substrate deficiency.