Seeding Question for Garden Knowm

I have a very serious problem on my hands. I have seeded 8 seedlings in â??Black Gold Organic potting soilâ?�. I have mixed a 1:1 ratio with perlite as you can see.
I asked you about a week ago if seeding would be alright in this and you agreed because you used it yourself. (Iâ??m not blaming you as I had planted them b4 I asked)

This looks to me light nute burn. It initially showed on the embryonic leafs and has moved onto the true leafs on two plants. I assume they are gonners but I want to save the others.

I have flushed all the seedlings very gently with a turkey baster two days ago. But they have gotten worse.

What do you think?

I always forget the pics

Those are signs of a nitrogen deficiency, however that is very unlikely with seedlings so it's probably heat stress, you shouldn't have a problem with burning seedlings that small because you really shouldn't be using nutes.
Peace

yes but the soil could be to hot and burning them. they are right by the air intake in my room. and the temp in the room dosn't get above 85 and 95% of the time it is 81

They are however, under a 400W MH light. See pic. They are about 15 inches away from the bulb. I think they might have heat stress. As it is only affecting some of them. so i raised the light and moved them away from it.

metal halides are way intense for seedlings that small
get a few CFLs and put them under those and see how they do
probally not the cause of the burns but will definatley help them

ok well i started up my seeding chamber I was tryin to save some electricity. So i've got em under T5's now, but you dont think it caused the burns. hmmmmm I hope it did

any suggestions?

Harris7 - I have the identical problem happening with my seedlings - you can see the pics of them here: http://boards.cannabis.com/showthread.php?t=83485 - they have not grown at all in the last 4 or 5 days and the small round leaves are almost completely yellow/white today. My temps are nearly the same as yours (about 75 to 78 in the grow closet - 85 directly under the reflector. But a big difference is that I am using a 125w CFL about 3 -4 inches from them. I guess it coud be heat but I havent seen anything in the threads about CFL's and too much heat? :confused:

My biggest question is how often you watered them? I am thinking it was overwatering for me so I quit watering them a couple days ago and still no difference. I am sure open to finding a definitive answer so I can avoid it with the next attempt.

Just because I seem to be stumbling on my first attempt, my next try will be with some freebie TroubleMaker seeds, till I get this indoor thang down. :D

Quote:

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Originally Posted by doco

My biggest question is how often you watered them? I am thinking it was overwatering for me so I quit watering them a couple days ago and still no difference. I am sure open to finding a definitive answer so I can avoid it with the next attempt.

Just because I seem to be stumbling on my first attempt, my next try will be with some freebie TroubleMaker seeds, till I get this indoor thang down. :D

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I water mine more than once a day. Only because they are seedlings with very small root systems and in very small pots. I believe they dry out inbetween the waterings. I dont think it is over watering.

also, i think mine have stoped growing in the last few days too