Can you post pics? If they are just limpets, COOL! I wish mine would multiply that fast!
Where are you located? I'd be willing to come take as many as you'd let me take off your hands!
Unless they are eating your corals, just enjoy the new life forms!
Everything will eventually even out and you will probably not see so many of them. I get glimpses of mine only once in a while. I've even found nudibranchs from something I bought from the LFS.