HerbalEdu said:

what kind of soil, medium is that ?
( brand, line or detailed composition )

How often and how much are you watering ?

look like you have an healthy plant next to it, so may be genetic also, high ratio of variegation or albinism is possible.
so i doubt light distance and intensity have something to do with it ...

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Natep said:

Looks like it was a soilless media no nutrients. The seed has enough nutrients to get it that far. If it just went into better soil it should fix its self.

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budrow said:

Hi. I recently started some new seeds and for some reason this one was yellow very shortly after popping out of the soil but the other ones were green and fine. This is a gorilla glue #4 auto. (I know the soil looks dry but I just refilled cup with more soil before taking this photo) thanks!

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