Time will tell if you need support. I am not an expert indoors. The plant may be able to handle the weight of the mature bud. I can't tell from the pictures. What medium are you using. What are you feeding. Don't worry about support yet. If they get real heavy which is a good problem. You can use the walls of the tent to help. Some people use nets and or bamboo stakes. Not knowing the strain is a little handicap because you have no idea on flowering time. I would suggest that next time you buy some seeds from a reputable breeder.