Clone (GDP) with Yellowing

I got clones, and the GDP one has only 3 bladed mostly leaves, and had 1 yellow leaf. Now it has several yellow leaves. I dont know what is wrong with it. All my other strains get same nutes and seem fine.

here is the Grand Daddy Purple clone
View attachment 1417119

I wish the pictures on the sticky were still there, I wouldnt have to even make a thread!
Does anybody have any advice for me?

i been growin gdp for years now i can help.