Deficiency in Hygrophila Difformis - The Planted Tank Forum
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post #1 of 2 (permalink) Old 03-12-2005, 11:27 PM Thread Starter
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Deficiency in Hygrophila Difformis

Hi all,

I would like to ask for some help in ID'ing a deficiency, I have searched and can't find the answer. My wisteria has developed veins that are quite yellow, it is quite a contrast from the color of the leaf. The leaves are slightly cupped at their edges as well. Nothing else is really showing any signs of deficiency.

I am dosing KNO3, Fleet, and traces as per the EI; must admit I have been a bit slack at testing N and P lately, but last week they were acceptable (15 and 2 at weeks end, respectively). CO2 is kept close to 30 ppm. Lighting is a little over 3 wpg. Tank is about 3 months old. Crushed coral in the filter. I am not dosing any Mg (or K over and above that present in KNO3) at present. Any thoughts?
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post #2 of 2 (permalink) Old 03-12-2005, 11:51 PM Thread Starter
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D'oh, sorry about that folks, don't mean to waste bandwidth or people's time, but just retested phosphate and it's only 0.2. I'm not sure what was going on a weekend ago.

I suppose this could be the problem. Has anyone seen this sort of symptom with low phosphate?
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