Why is there yellow shite on my seedling?

[ryanhayn]

theres yellowing going on around the edges of one of my seedlings. i'm growing 5 total, but only one has the yellowing. they're 10 days old (from planting). got 3 6500k 30w cfls 1 inch from the plants, watering every two days, sometimes i'll add a little water each day though. temps are 82F. why the yellow?

pic 1 is my shitty growing can
pic 2 is the yellow plant
pic 3 is my healthy plants

[stinkbudd]

Overwatering maybe? That would be my guess because I don't see any scortched or burnt edges & tips.

[doco]

I generally think overwatering too...at this early stage it can only be one of a few different things and overwatering is at the top of the list of mistakes I have personally made. But, just to cover all the bases, what soil are you using and what is the pH?

[ryanhayn]

i'm using basic "nature's premium" potting soil from home depot. it doesn't say what ph it is...but the marijuana bible i got says thats fine.