Hydro is beautiful and the knowledge of it is inspired by the marine ocean plant life. So hydro is advanced only because of constant oxygen, water, and organic nutrients. Hydro is not for pros only and the pros had to start off with mistakes as well. So its a matter of being responsible with care and concern for the plant. Thus other factors such as space, time, patience, focus, equipment, motivation...etc. Also on Amazon you can get a Single bucket set and the meters you need and just study up on it. The truth is your not a complete grower until you successfully touch these various or diverse areas and styles of growing.