seedlings stretching?

just wondering how tall my stem should be. i have a few plants that are 3 or so inches and the leafs and about 1inch and a half wide are they too tall

Nope your over thinking it

Only thing that can cause seedlings to stretch is a greenhouse, well not the only thing but the thing I know of. Those little plastic tubs you buy to germinate like 30 seeds. Not sure why but I always get lanky looking seedlings inside them. Go straight from a paper towel to the dixie cup now.

if your plants are to far from your lights it could cause your plants to stretch for the light, but I'm with matt78 they sound fine.