Plants are outside want to bring them in eventually,

What's up everybody I'm looking for help or ideas,
Right now currently I have only one room that's right in flower 4 weeks from finishing, I recently put out 7 plants that I had left over from veg put them outside in the little grow 2m square tent ,they seem to be loving it looking very vigorous already month old the strain chocolate marshmallow (exotic gentex) characteristics of the plant is a bushy shrub like, not wanting them to get out control ,soI've been pinching and topping plants where necessary,
Since I'm in the bugs discussion the problem I've been hearing about is do not bring plants inside! Ive roughly 4 weeks maybe three before I could take them back in..i'd like to get them some pesticide treatment in the soil or on plants, to be fair I don't really see much insects slugs or the like in the greenhouse as of now though they'll come soon enough, this is the situation I'm in until I get a another tent for indoor vegging..
Any help to prepare them let me know here

I’m a ghetto ass. The most important thing to remember is it’s still a plant and nothing can recreate the suns rays. I have my plant by my window during sunny hours and put it the lights when the sun passes my window and it’s doing fine. I would just slowly introduce it to inside conditions. I’m not an expert or anything just going off what I know. Other thing is there must be a way to keep the slugs away. Like a spray or something