Well your plants are going to grow a few more inches so you have a few options.
1) you could top your plants and re-vege the cuttings.
2)you could LST your plants and do a horizontal grow.
3)you could cut a hole in the top of your tent and make modifications so the light can be raised.
4) and finally you could try and scrog your plants even though its a little late.
hey thx man, but none of these is practical for my situation now...
1) I thought of clone the tops, but I don't have the proper tools and another light source to take care of clones.
2) LST is too late and I don't feel there is enough room to let em go horizontally either.
3) that would be nuts and I can not figure a way out how to hang the light outside the ceiling.
4) If u read my earlier thread, u'd known that this grow is suppose to be a scrog and that's why I built the tent with this height. the problem is, I've never scrog'ed b4 and screwed up this time, I put down the screen a bit late and the screen messed up all branches so I had to lift it up and go back to a normal grow.
I think I'll just tie em lower every 2-3 days and lose some small lower bud sets, at least it's better than lose the main bud sets on the tops.
and oh, next grow is gonna be a scrog!!!