Is This a Spider Mite?

I couldn't get any pictures because it's so tiny and moves so fast. It's really tiny, almost to small to see with the naked eye. Kind of a redish orange. I also noticed that on the floor around my pots there are a bunch of tiny jumping larva looking things. They are a little bigger than the redish orange bug. They look like a larva and bounce a lot. They are greyish in color.

Are these two different bugs? Are they hurting my plants? What can I do about them?

Go get some "That stuff" mighty wash by NPK co.
use as dirrect should take care of both problems. little reddish to black things on the bottom of your leafs are spider mites, thing on the floor around pots sound like nat laurve. Do you have little bugs flying around in your room?

I did have a gnat problem, so I put about 1/2 of sand on the top of my soil. Someone told me that should take care of the gnat larva. The redish-orange bug wasn't on the bottom of a leaf. I've only seen 1, im sure there are more, but it was just running across the top of a leaf towards the top of the plant.