Where can I find hermit shells and buy hermit shells? I bought two pretty small hermits, and one of my astrea snails had died before I put the hermits in - now it's a month later and I noticed one of the hermits moved to the empty astrea shell (good thing I was lazy and didn't bother to remove the shell or I'd probably have a dead snail) but that then raises emergency for the next hermit who I assume will want to move it's home soon - where can I buy hermit shells and how do I know it's the right size? I assume I should pick up bigger shells than an astrea shell so they can move to the next shell. Do hermits continue to grow or will they reach a peak size?

