branches breaking

Didn't get photo yet, as this happened this morning. The tree is maybe 4 ft tall in 5 gallon hydro bucket. I generally adjust/water them an hour or two before lights off in the morning (I have two in flower now). The larger one in its own 4x4x6.5' tent was partially fallen over this morning...

Should I tie up branches? When they go from green to woody will they be strong enough to hold buds.