Condensation problems

Hi everyone, I'm new to this and would appreciate any advice.
I'm in the 18 0n, 6 off stage atm but have a lot of condensation.
Literally runs down the walls of the tent and puddles on the floor.
How do I get rid of this?

Extraction fans don't just move air they move water too, if it's building to condensation levels and you don't have one that will solve it. If you have one and still condensation it might be building in the room your tents in so opening a window will solve that.

Thank you.
I'll get one sorted.

It's not really important what the humidity is it's just important it doesn't reach certain points where the air can't hold it all.

Plants pump out water vapor into the air, it's simply managing where it goes.