Thanks for the replies. I thought it may have been but the picture I saw of a limpet, didn't look at all like these, there must be a varity of them, or maybe I didn't search hard enough.
I'm going to search again and see what info I can find on them, mainly if they get very big? I have 2 good sized ones now and saw atleast 3 much smaller ones (babies I guess)
Love all pets! When You get them it means you take thier life in your hands,(Like a marriage,LOL- for better or worse) do your best to care for them and they will bring you years of joy! And are likely to give you less of a hard time than a human spouse!