Holes in my dwarf lily leaves

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br553

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Sep 27, 2006
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Lately my dwarf lilies have started to develop holes in their floating leaves. The individual holes are bordered in a reddish coloring but only on the upper surface of the leaf. None of my other plants (various aponogetons) are showing this symptom. I'm not sure what is causing this but I suspect some sort of nutrient deficientcy (sp)? My setup is a 10g tank with 40 watts of 6500k CF lighting. The lights are had been kept on 12+ hours a day, although that's been shortened to 9-10 hours a day. I run a Hagen co2 generator as well as 5ml of N and 5ml of K every two days. Iron, P, and micros are dosed once a week with the water change. I remember seeing a post somewhere with a link to various signs of poor fertilization, but I can't find it now. If anyone know what I should check, I would appreciate it.
 
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Thanks, after reading that, it sounds like it's a N, P, or sulfur deficiency. I just recently put a couple of fast growing ulvaceus in the tank, so maybe they are sucking the nutrients out of the water column faster than anticipated.
 
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