I found $0.02 in my pocket... hell who am I kidding. I will probably be the reason they make a 2cent coin.
You want to Condition the air in the room that the tents sits in unless it a fairly large tent.
In a basement assuming it stays fairly cool? (Fill us in there) you prob won't need an AC but almost certainly should have a dehumidifier. I would say about 4 gal per day in a 3x3 would cover all the transpiration. So a 30 pint should do it for you. Don't try to run them under 50% they will not be efficient and will run almost nonstop.
Also in a basement you may need a heater and remember you want to heat the air in the room the tent sits not the tent itself. So you need on big enough to accomplish this. Of you have baseboard heaters (doubt it) that's perfect if not a good quality space heater with tip protection, preferably with a thermostat or you can use a temp controller. Personally I think inkbirds 306T is the best bang for buck and allows you to do day and night temps unlike the 308.
This one here.
Inkbird Digital Outlet Heat Temperature Controller with Day Night Control for Brewing Aquarium Breeding Reptiles Hatching Heat Mat
https://www.amazon.com/dp/B07KC24CKD/ref=cm_sw_r_awdo_navT_g_D30M75SWZ9SKEX2JK5BM
These guys got ya covered and I think my $0.02 has run out.