^ I'm gonna say ignore my Ladybugs idea, as everyone else has a lot more indoor experience than I do. I've used them a few years myself, but not in a tent. I've seen Spider Mites get taken out by them, but there's likely other predatory insects that showed up too, as I mostly flower outside.
Personally I'm grateful I haven't ever had Aphids or Mites in either tent of mine. Mind you, before every use, I go full Rammstein on my tent before using it each season.
Spray bottle of 90% alcohol, spray every inch down until wet, spray components and allow to dry, then hook up fan to move air around and leave for a few days to dry. New straight from the bag soil for every Seedling, as my outside soil likely would have bugs in it, and then only use said outside soil for filling pots for the outdoor plants.
Outside does have it's perks, as predators will always show up where there is prey, but a tent, is another type of monster. I'll go with my OCD being a plus this once lol.
By the way, if you do reuse soil from infested tents, just get a tea kettle. Put the soil in a bucket, and add the water in. You'll have to add microbes yourself after this, as it'll likely be dead too, but it'll cook whatever is in there usually so you don't restart infestations.
As you can see, multiple other people came in to aid you, so just be resilient like a mite, and you'll be pumping out fire in no time
