how long do you have to vegitate

ok so i was just wondering how long do you have to vegitate before you go into flowering mode im runnin on 24hr lights till flower..would i need to wait till it gets a certain amount of leaves or how tall...any and all help is appreciated!!

you can Do It any Time Keep In Miind It doubles/ Triples in size in flowering

ok so i put it in the 3 days ago and its got a good first set of leaves so do you think itll be ready to flower in two to three weeks and how long do you flower for

You Could Do How Much Space Do You Have ?

i have a fish tank i am veggin them in and then i have a large area of about 4 to six feet to flower them in

I personaly would not switch to bloom till they are atleast 12 inches. preferably 18 inches. they tend to double in size at least, like deweY said. so make sureyou have the hight. all strains are different, but generaly 4-6 weeks for bloom. you will know when they are done.

ok thanks for all the help!!!