Problem with first set of leaves dying?

jujment699

New Member
I know cotyledons die off when they are done being used but how about the first set of true leaves?

I posted these photos on another forum and somebody said first true leaves always die. While I've found this to be partly true, it has only been 3 weeks from seed.

Plus my second node of leaves is starting to look plagued at their tips.

image28049.jpg
image28048.jpg


Those are three different plants. Anyone know what's going on? Like I said it seems everything is going good, they look great.

I thought it was a cal mag def. fed cal mag with water and so far the process is slowed down. But now the leaves are pretty dark. Maybe N def or tox?

From seed: 3 weeks
Temp: 75
RH: 30%
Container: solo cup
Ph of water: 6.5 - reverse osmosis water with 30-50 ppms of calmag added
Soil: FFOF 1/3 happy frog 1/3 perlite 1/3

Thanks for anyone who can help
 
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