fleas in my tank???

[MrKrabby]

I have brought in some new frags and some rock etc from different sources and now I have got what I want to call fleas everywhere in the tank.

They are very small (1/16" or smaller)I would get a picture but I can't they are too small. They have 4 legs and 2 long antenas. I have no idea what they are but they are bothering all my zoas in the tank.

Anybody have any ideas on what they are. I know it is not a good description but thats all I got.

Any way to get rid of them like adding a fish to the tank?

Thanks