420 FastBuds / Wedding Cheesecake Auto

So I returned from my holidays, and I was surprised how the plant was going so well with just the blumat devices (only water, without any nutrients) for like 7 days long. The plant didn't suffer for the massive amount of water I gave it before I left, and stretch has begun and the plant was at like 5 cm of the lamp, but fortunately it didn't burn. I've done some LST to correct that, and you can see on photo number 2 that I've tinkered the box to have more space. But stretch is a the beginning, and I'm scared there will be not enough space... so I'll buy a box of 120*120*200 in a few days, and I'll be able to do a better LST.