black bugs with wings slow plant growth wtf??

So heres my dilema i have these moth like bugs running around in my grow area seedlings are about a week old just now starting to get there second leaves my temp 85-87 which is imo high but im working on it, the grow set up is a bedside table its painted flat white i have 3 desk fans around the lights & 3 comp fans 2 in take one out up top and i have the other fans inbetween the lights on the floor blowing fresh air up and one facing the open door making a bigger exhaust, but door open temp is still 87, i have 490 actual watts in cfls i think i.might be over doing it in there should i split the lights in half and make 2 grow areas? Im planing on making some co2 for the box ive read the plants can tolerate more heat when co2 is mixed in the air, is this true? If it is i can have my setup up and running tomo. What can i do to get rid of these bugs? I try not to overwater i suspect these bugs to be fungus gnats also found a bigger black bug once but i killed it and never saw any other ones. Im thinking of using yellow sticky tape for flies ive read somewhere that the gnats are attracted to the sticky yellow tape idk, ive tried the method of using really sweet coffee and some dishsoap and nothing!! I left em there for a couple of days my girl actually had one fly into oneof her coffee mugs she left on the dresser and i got none :/ the most i do to rid of them is try to water wayyyyyyyy less which is a problem cause of temps running high, anyways umm lets see my soil is scotts moisture control advantage it has nutes so i try to flush the crap out of the soil before using it pics are not possible right now but picture a seedling first two leaves and second 2 leaves popping out now any help is appreciated keep in mind they are a week or so old i feel they are small.

first off do you see what looks like a white powdery/snowy stuff on yer soil, if so its most likely fungus nats. If there flies that really like to congregate in the soil, there also probably fungus nats. A good way to exterminate the fungus nats (if thats what these are) is to have a fan close to it, not to the point where the leaves fold, but to where there steadily moving, this will help create an environment that isnt hospitable for the fungus nats, second, put an inch of sand on your top soil, this will fool the flies into thinking its dry and ending the majority of the cycle, the unpleasant environment will kill off any remaining hatchlings that may or may not turn into adults, and keep that for 2 days (this is gonna hurt to hear) without watering your babies, that will nuke your flies. Ive dealt with the problem a few times and not watering them for 2 days wont stunt the growth of your plant as much as the larva feeding on your plants feeder roots. Gl


Grow on.

and the problem usually comes with either over watering, not ventilated properly or at all, and especially with seedlings, watering too much of the outer soil, the seedlings roots arent long enough yet to absorb the water on the edges of the pot or container you have it in, so the water sits which creates a perfect environment for the flies. gl


Grow on.

The bugs start running around when i disturb the soil a bitother than that i will harldg see them my lights went off and came back on temp is at 79 now. Im gonna but sone distilled water because i dont have any ph testing kits.

And no white powderyshit also where can.i get sand is therr anything else i can do?