New Phals and a flying pest question

[MrsH530]

I finally got my new phals today! They're SO tiny!!!

I'd like your opinion on whether I should repot them or not. They're so small, I'm not sure if its ok to disturb the roots. However, I'm concerned because each has an aerial root or two, and I think that since they're so small, I should repot them and coax those roots into the potting mix. What do you think?

Also, I have a small flying pest that I can't identify. It's flying around the leaves and roots of my large phals and my succulent cuttings, but leaving my mini phals alone. It is not on the flowers, just hanging around the leaves and roots. I can't see any damage to the plants, but it's really annoying. They are small, grayish bodies. Bigger than a fruit fly but smaller than a mosquito. Do you know what it might be? How do I get rid of them?

Lastly, there are these little brown specks that kind of look like seeds on my larger phals. I'm not sure what they are. I hope you can see them from the pictures.

Thanks for your help!