i'd start out slow and add alil at a time i went from veg to 12/12 i changed out my nutes from around 500 i took it to 750/800 then after about 2 to 3 weeks i went to1200 over the 3week time span and i never got any burn or anything like that but depends on ur plants too i would'nt go from say 500 to 1000 but over time work it up to that
palerider7777 Reviewed by palerider7777 on . 1st timer, w/Hydroton, could use a little help... I'm a first timer, so I'm obviously going to have some questions. After reading about growing for the last 10 years or so, i decided to give it a shot. I spent the last 3 weeks in this forum reading everything I could (THANK YOU ALL), decided what would be best for me and went to the store. The guy talked me in to a few changes but I came out happy and spent a exactly what I wanted to. My space is a bathtub (about 2.5 ft x 4.5ft x 7ft) in a full bath. 400w HPS Digital Ballast (MH or Rating: 5