first time grow, feedback??

[green-giant]

I am worried about the first pic. It looks bit yellow in color. Rest of the plants look healthy. In short, a great start as being a new marijuana grower. With experience of growing marijuana, I am sure you will do wonders my friend!!!

Ya the first two leaves on all the seedlings i've had so far tend to have a yellow kinda colour but the rest of the leaves were fine so i removed the two yellow ones recently enough.