Help with planting Trinidad Scorpion in a grow tent

Hey everyone,

Given that many of you are in the US, here are the conversions for reference:
1L = 0.26 gallons
1 cm = 0.39 inches

I’ve embarked on a project to grow three Trinidad Scorpion Chocolate plants in an 80×80 cm tent, alongside other plants. The setup involves spacing the plants approximately 30cm apart in an 18L pot, as shown in the photo.

Now, here’s my dilemma:
While I’ve learned that these plants can reach a height of 150cm (uncertain if this applies to an 18L pot), my tent can only accommodate plants up to 80cm tall. I’m contemplating topping them to keep them smaller. Any experienced advice or thoughts on the viability of this idea would be greatly appreciated.

Thanks in advance!

by aruera12