IMO you should flush them then see how they look in 3-4 days. Give them a change before you pull them.
New Grower Can anyone help !!!!!
- Thread starter Bing
- Start date
Notice how the weaker leaves are turning brown? Heat from that lamp most likely drying out the leaves faster than they can uptake and transpire water. The weaker leaves are drying out first because they have less mass. Showing signs of the stronger leaves drying out next. I bet your temps are way too hot and way too much light from a 600w for such young seedlings. They could be under 30w CFL right now and grow fine. Turn off that 600w or get a dimmable ballast and put it on low for early veg.
Also, if you don't know your temps I'm sure you don't know your relative humidity. Seedlings take in most of their water through the leaves, which are currently dry. Cut some 1ltr bottles in half and put the bottom half over the seedlings. Poke a couple small holes on the sides towards the top for fresh air to drop in. That will keep most of the humidity in there with the plant and on the leaves. Do this for a week and you should see a difference, combined with fixing the light and temp issues. After the seedlings recover you'll want that fan blowing on them again to strengthen the stems, they look a bit thin to me, another reason they can't uptake water fast enough yet.
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