Young Plants (2wks) Showing Signs of Mb Deficiency?

I am having an odd problem as my plants are young and new babies, so they shouldn't be showing any nutrient deficiency soo soon as with my soil is loaded with amenities such as azomite, bloodmeal, kelp meal and humic acid. 2 or 3 of them are starting to yellow from the very middle top and working their way outwards. One of them has it pretty bad it's yellow on the first node and that baby leaf below the first node. I don't think it's nitrogen but rather Mb. I am using Fafard's potting mix in red solo cups until tomorrow when I put them in the ground outside but I need to figure out what is up. I have 6 years of experience (3rd year growing) and I'm confused lol. Ph is 6.5.
I'm thinking about giving them a very slight dose of FoxFarms liquid nutrients and maybe something to feed Mb to see if that helps.

Here is a pic, sorry for the low quality

420BongRips said:

Here is a pic, sorry for the low quality

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Lol. It looks like New growth that hasn't had a chance to darken up yet. Has the color gotten lighter where it was darker previous or did this happen after a noticeable growth spurt?

NewtoMJ said:

Lol. It looks like New growth that hasn't had a chance to darken up yet. Has the color gotten lighter where it was darker previous or did this happen after a noticeable growth spurt?

Click to expand...

They were nice and colored until a day or two ago, the photo isn't the greatest quality and I have another plant that's almost completely discolored yellow and smaller than all the other plants possibly stunted but it's northern lights and big bud autoflower...