1st do ya know what sex the clone is
2nd if ya are gonna clone a clone ya will be best of waiting till its a strong looking plant with loads of foilage then look for a healthy branch that is coming off the main stem and snip it at an angle then dip into hormone gel and/or powder then place it in to some rockwool wet it and leave it till ya can see roots coming out of the rockwool then pot it
and 3rd for flowering place it under a red spectrum bulb in a 12/12 light cycle
cheers hope this helps
good luck