Week 4 into flowering How come some plants havnt grown in height

[Jmann567]

let me take a guess here ...... are the shorter ones on the opposite side of the light socket by chance?? meaning plants are farthest away from light socket.

No actually their not.......that would make sense if that were the case....some are directly under the light..

I heard someone say in a post on here don't use ebb and flow tray because the plants need movement just from their experience.....I never asked for more details but can anybody explain that more.....

An oh yea I started from clones.....maybe thats a reason....
The buds look like their still growing the plant stoped growing height wise..