Are these plants too big for my 4x2 tent?

Hallo, They aren't too big yet, so don't panic! You can definitely manage this in a 4x2 tent, but since you just put them into 5-gallon pots, they are going to explode once you flip to 12/12. To keep them under control and maximize your space, you should use some HST (High Stress Training) like super cropping, or a solid net for Scrog/LST right now to flatten out the canopy and spread those branches wide. Your main challenge won't necessarily be the height, but humidity (RH). Packing three massive 5-gallon root zones and a dense canopy into a 4x2 means those plants will pump out a ton of moisture during flower. Depending on your local climate and ambient room humidity, you'll need to watch out for bud rot. Quick tips for the flip: 1. Defoliate: Do a good clean-up of the lower third (lollipopping) and tuck/remove large fan leaves to keep the airflow moving through the dense spots. 2. Airflow: Make sure you have enough oscillating fans both above and under the canopy. 3. Dehumidifier: Keep an eye on your RH metrics. You might need a decent dehumidifier running outside the tent to keep the intake air dry during peak flowering. Train them well right now, keep that air moving, and you'll get a massive harvest!