Weird Difference in Tomato Plants

[Aeternus]

Hi guys/girls,
I'm growing 5 Cherokee Purple plants in my LED grow tent, and noticed a huge difference between some of the plants. For example, here are two of the plants next to each other (I've done absolutely nothing to either of them except germinate the seed and transfer it to a 4 inch square pot, then a 2-gallon circle pot. )


The plant on the right is shorter, stockier, and has much larger leaves:


Whereas the plant on the left is way taller, the leaves are way more scarce, and they appear to be smaller and yellowing off:


Does it look like the taller plant is missing some kind of nutrients? They're in Miraclegro potting mix (which has a time-release fertilizer) but I feel like the taller plant isn't in the best of shape since the top leaves don't look too healthy and it's not really filling in at all. Any advice? Thanks!