Does this look like spider mite or a predator mite...

I counted 8 legs, I'd say its a mite of some sort, what one is the question, I do not think this is a spidermite, off coloration and its not on the plant but in the soil and that plastic nub. Might just be a basic soil mite and none problematic. The ones that infest plants and kill them tend to be on the leaves and make webs when population gets to high. If your concerned then I agree with Steves response in using something with pyrethrine I also agree with Ezzjaybruhs conclusion they are not aphids. Aphids they not to be that small and not that mobile, again they like the leaves and stems. There is something called root aphids but this is not that either. You have a few other questionable pics in the diary of egg like things on leaves. I think you should douse the medium with something to help control the population even though it won't wipe it out fully. Also pluck off some of the leaves with said eggs and place it in a jar with a lid to see what hatches out of them. you can give your plant a shower and use water to blast off off of the fuckers, but give it a good shake down and dry off to avoid moulds from growing in the buds as High Humidity is the devil in flower. Good Luck!