Lighting How many cobs needed for auto seedlings and what distance

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bluecheese
Hi, I just started using my autocobs and was wondering how many are needed for my auto seedlings and how far away on average that the light / lights should be positioned for the first 2 or 3 weeks. I don't want to overdo or underdo it. They're in canna coco, using A and B nutes.Thanks
 
How many?

I have clones rooting under one auto cob in my 3x3 in a tray light is 24" from cuts.

The seedlings I usually run in the 18-24" distance to canopy. Once the plants have established better I try to be in the 12-16" range. This is just a guideline, you have to watch your plants because different strains will react differently.

Pic of the clone tray, cuts were taken like 2 days ago:

IMG_20170916_071713.jpg
 
I'd run one over a 24"x24" space for now. If you want you could go a bit bigger too. Once they start growing outside the space it's time to add more.
 
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