sir_isOanswered grow question 4 years ago Oh and the other thing is, soil mixes and stuff still vary, even in the same bag.
One pot could have a little more of this and that mineral, and the other a little more of something else, slight watering differences, etc. All of those small differences in the factors add up.
So you really shouldn't be worried, as long as they look healthy (and currently they look healthy). Later they should be more comparable (assuming they are basically the same phenotypes, and both pretty much get the same treatments), small changes initially are seemingly more exacerbated, because of the growth rate and those differences become marginal later regarding age, size, etc.