you may not have anything to worry about with plants being inside all the time.
my habaneros are aphid magnets but currently i have very few aphids as i have killed them off but there are always eggs in the soil. my scotch bonnets are untouched, don't know why as they sit beside one another. my plants live outside in containers during the summer months then inside the rest of the time. trounce does a good job in controlling aphids.
i do have these little black flying creatures zipping around, they don't appear to harm the plants but nest in the soil, i kill about 15 per day.
good luck.