I would I raise the smaller plants up so they are closer to the light. I like having a two separated areas. One for vegg (18+hours light a day) ,then a flower area(12hours light/ 12dark). i would use the tent for veg. The larger plants look like they are about ready to be put into flower. I would vegg the smaller plants until they are larger. If you are going to flower with that t5 fluro, I would consider a "scrog", you can search on here for examples, or maybe another farmer would be kind enough to post a.thread link or picture. it would cost veery little to build. Also make sure you take a couple clones of each plant. The t5 is a good light but doesn't have a lot of penetration compared to say a 1000w hps. but would would work.great in a scrogg. that's just me, curious more about what others would do. :wondering .. so what is the dimensions of the total area.you have to work with?