What kind of pest is this and how do i deal with it?

[K.O.]

Hello,

I recently discovered some weird looking bugs on the bottom of my dendrobium plum purples water tray. When i lifted it there were these white looking dots on the bottom of the pot itself. I also found 3 on the top of my phal. violaceas roots. i blew on them to see if they were actually bugs and they quickly retreated to the sphagnum moss to hide. They look silvery to me with a rainbowish shine when exposed to the light and they are ovular in shape. There was also a white circular bug but i could not see very well i thought maybe it was the larve? I attached some pictures hopefully you guys can see