Same strain... Different sizes and shapes?

im growing three night queen Dutch passion auto flower feminized seeds. One is overly big for its age, ones perfect size for two and a half weeks and ones stunted and burnt. It's all in a rdwc system and the 4th LSD autofem is slowly doing its things.

I realized you can't feed these plants much at all. If I go over 300 ppm they burn.

Are autos really just funny plants?

Photos are were the growers are dude, I don't see too many people growing autos, but I have plenty in my collection. I have different shapes and sizes with photoperiod plants, I have been told it's different phenotypes within the strain itself not sure if this applies to autos as well?

Autos are from seed and will pheno like any other plant.I can plant 20 seeds and the odds of any of them being the same are slim to none depending on the breeders. Some like la Plata labs narrow it down to 5-6 possible phenos others just put out seeds with a hit or miss quality