first grow are these healthy

[ryan2293]

hi so these 3 plants are from my first grow there are all nothern light auto from sensi seeds in Amsterdam, I made a post a few days ago about this and everyone said that they were looking great but the few patches on some on leafs are raising concerns and I don't really know if i should worry or not as it is first grow haha, any help would be very much appreciated

all planted in plant magic soil supreme, started germination on Wednesday 24th, the smallest plant sprouted a fairly big tap root on the Friday and the other two had all sprouted by the Saturday 27th, so I'm saying that all these girls will be 2 weeks on Saturday, they are all growing by the night but these patches are worrying me to the point where I thought i would make a post.

the light is 36 inches away as after researching I thought this may be bleaching from the light being too close (originally 28 inches away) I have given them all 3 1l feedings over that pest 12 days with no extra nutes running a constant 26c about 60% humidity