what are your temps? should be ideally 75 but under 85 should be good enough. high temps = stretch
This is a great picture of what not to do the internodes are far too far apart.The only way that i would be happy with a plant looking like this is it was a sativa and then i would not be happy but some strains just grow this way[sativa] that is.Or a mother plant that it does not realy matter how leggy it will get because you can always take the top off.If the lights would have been kept alot closer to the plants top the yeild would be double if not more.Get the lights about 8/12 ince max closer if you have all the right exaust equipment and a good ossalating fan blowing on the hood and bulb to keep the temp down.Then have a seperate fan in the bottom of the g~room blowing the plants around to simulate the wind.Keep the lights close on the next grow and you will see the differance in the yeild you will only have to grow half the ammount that you are growing now to get the same if not more results.
DOn't raise the light, that's only gonna exacerbate the problem.Since they're in flower, the stems are gonna be woodier than they would be if they were in veg, so they're easier to snap.
If you want the plants to use the CO2 you are giving them then run it at 85 at plant level
I definitely won't raise them but if the tallest plant starts to grow above the reflector will that cause it to stretch even more?
Might make that branch start to bend back down toward the light.And you can probably still lst, my point was it's just gonna be a little harder not to snap the branches. You probably should have topped them a couple of times in veg already. Topping them in flower is kinda defeating yourself, IMO, because you're affecting your yield.