Need help figuring out what kind of bugs I've got

I've been looking all over the place and I can't figure out what they are. I can see them chilling on the roots (absolutely none on the leaves or stems) and floating around and dying when I flood my table (I'm using a flood table with pots filled with hydroton). They're extremely tiny brown/black bugs with 6 legs and a pair of feelers. They have big round bodies relative to a tiny head. They are so small it was tough for me to see how many legs they have. Any guesses?

Do you see any flying insects as well? Fungus Gnat larvae chomp on roots and the adults fly around.

I haven't seen any with wings, but I had the same bugs in my last grow and there were a few with wings then. Is there anything I can put in my reservoir to kill them? Neem oil spray seems to kill them but I don't know how I can get that down into the roots.

If it is fungus gnats there are many ways to 86 them. Do some searches on this forum for fungus gnats and you'll find the way. I've only had them once and can't remember what I used to get rid of them, but do remember they were an easy battle compared to spider mites!

Root Aphids is my guess. Have a friend doing battle with them right now.
http://www.cannabisculture.com/v2/articles/4519.html

^I didn't read the link(heading to bed.lol), but he could be right. Fungus gnat larvae are white colored, not dark.

Just went to the hydro store and they told me to dump an entire $70 bottle of Azamax into my 18 gal reservoir for one application. Do you think I could just mix it in a couple gallon bucket and then just dip each pot in it?

oh also check you ph i have been told that bugs will make it start to rise.

Help I've never seen this before 2 types of bugs eating at the roots inside a root roit cube near the top & inside the cube.
one is a bit translucent. the other has legs & moves fast. I captured them both on microscope video. & one by picture.
I don't know how to attach pics here!?
Crap