Does a autoflower stay in veg longer when grown in...

hey there Sanderanders, interesting question, i'm guessing you were expecting quicker growth in hydro, and it does work that way. However hydro is more than just a medium : it's also a set of techniques, and you simply need to do these techniques to get quicker growth. For quick or even just normal growth rates in hydro you need to do a fair bit of root pruning, which when you cut the roots. Without this the plant simply grows slower. Just my personal experience with hydro, without root pruning the growth rate is average or below, with root pruning it's faster. So that's why coco seems quicker, but if you cut the roots properly then you'll see the very quick hydro growth. Hope this helps ! 🚀