youre going to find that most people who dont look anything up on it are still going to call good weed dro and not want to listen when you say they are wrong. i tried telling this to a friend awhile back saying that all it is is the same weed but you can get bigger yields cause the oxygen goes straight to the roots(i may not have been right, but i was closer than him) and he replied by saying no the yields on hydro grows are a lot smaller but just much better weed. that wasnt the first time it had happened.