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Leggy seedlings keep getting longer

newbie seedlings leggy

Best Answer Hybrid Mode 01, 04 October 2016 - 06:22 PM

     Not enough light + heating mat = leggy growth. They will need supplemental light soon if you want them to make it.

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#21 Masher


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Posted 26 October 2016 - 12:12 AM

I use a 2 bulb 2' T-5 with a 6" oscillating fan for seedlings....fan runs 24/7 on low but it is directed at a wall to bounce back for air flow...not directed at plants.


Leggy plants need more light...either more lumens or closer to the source.


Once they take and mature they go under a 4 bulb 4' T-5


I have taken leggy seedlings and planted them into solo cups and then filled them up to the first set of leaves and moved them closer to the lights.


The main stem will put out roots this way as well.


I have this set up in a 2' by 6' closet....upper shelf for the seedlings, bottom for the juveniles.


Ambient temp is maintained 70 to 80 degrees as much as possible.



Edited by Masher, 26 October 2016 - 12:16 AM.

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