5 days old seedlings looking yellow. Please help!

[Justin Credible]

Hey brother you are right. When you worry you make it double the song says! On the growing i want to ask you about my light schedule. You think 18/6 or 20/4?

I run 18-6 all the time and have no experience with 20-4. Some people swear by 20-4 but both is fine. Some even run 24-0 but I don't like that cause I believe plants need a little rest after that much hours getting blasted by photons!
With 20-4 they might finish up sooner but on the other hand it will take up more electricity.
Usually with auto's it's the more light the better, so I might give 20-4 a go sometime to see if there's any significant differences.

Enjoy your grow man!

 

[Waira]

What exactly is she growing in? Light mix or not, adding more perlite makes it even lighter, less nutritious.... I believe AT started feeding by week 1, dilute dosing, and/or he precharged the medium lightly (Promix? I forget what he used,.. that stuff is nearly devoid so feed by week 1 for sure)... miss that guy!