First Grow.... Plant is FUCKING MASSIVE....Cookies Gelato.....

First grow so bare with me... I started this grow in a 2'x4' tent that's 60" tall. The outer two plants got stunted and it took far too long to revive them. This strain supposedly has a 8-10 week flower period. I was hoping they'd catch up, but it's been far too long. I ordered a new 4x4 tent that will be here in 2-4 days. I started the 12 hour cycle and I'll move them to the larger tent as soon as it gets here. All 3 will be going into flower at the same time so I can focus on other plants. This middle plant has not given me a single issue. I started it on a lite dose of GH FloraTrio nutes and worked it up to a heavier dosage. Currently feeding it a week 1 flower dose off the FloraTrio series with a few additional Additives. Probably in way over my head with the nutes, but I'll change dosages if I see evidence of nutrient surplus or deficiencies. Mainly focusing on the big healthy plant. One of the small ones is the same strain (Cookies Gelato) and the other was a Freebie of OG Kush.