Seedling problems

[peacefrog420]

Hello all

 

I currently have 3 Seeds going 1 green crack some auto seed and a sweet dreams all seem to be having the same problem they are 3 weeks old and haven't done much growing the leaves are starting to go yellow and getting some brown spots but the new growth is green but small.. I'm growing under a 300w mars hydro and will eventually have the auto under it and the others outside can any one help me out??

 

 

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[pug1010]

hi peacefrog

 

Something seems a bit out of wack after three weeks. Could you please let us know what your soil mix is - I can see perlite, but just wondering what else you have in there. Also, could you give a bit more info on how much and often you water and high your led is from the seedlings?

 

At this stage, seedlings don't need much water or any nutrients in soil. Other LED users would be more qualified to answer this one ... but I am guessing that a 300w Mars light is a lot of light for a seedling too.

[gazza308]

Hello all

 

I currently have 3 Seeds going 1 green crack some auto seed and a sweet dreams all seem to be having the same problem they are 3 weeks old and haven't done much growing the leaves are starting to go yellow and getting some brown spots but the new growth is green but small.. IMG_0380.JPGIMG_0378.JPGIMG_0374.JPGI'm growing under a 300w mars hydro and will eventually have the auto under it and the others outside can any one help me out??

 

 

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hi mate, my advice is to start your seeds under a cfl fluro light and keep it on 24/7. What's your process for germination? I think that led your using, the color spectrum looks very reddish, which I'm sure is great for flowering plants but not ideal for seedlings or veg mode. You need a white/blue spectrum for seedlings and veg. Here's what mine looks like. I'm running a few autos under my led and have a few regs under my cfl at the back. Hope this helps u out.

 

 

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[gazza308]

I have my fluro light about an inch above my humidity dome. If you have it too far away the seedlings will stretch like buggery, and end up limp and lanky. Wanna keep it as close as possible. And I use the opposite for the led have it faraway to start see how plants respond and then come down a couple inches at a time, led is about 26 inches away from top of canopy. Obviously different lights and outputs will determine how far you need to be.

 

 

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[gazza308]

As pug was saying whats in that soil? I'd be replanting into a good seed raising mix.

 

 

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[micmac]

They’ve got light bleach those small plants, that’s what that white is

 

 

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[greenqueen2]

A pic of plants in natural light would be good

 

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[micmac]

No need gq , made the same mistake myself, definitely light bleach

 

 

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[d-max420]

Maybe nute burn or as micmac said light bleach but it looks like you have them in soil and the soil looks realy wet to need more info

 

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[d-max420]

Clones and seedlings do heaps better under t5 or cfl lights

 

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