well i just purchased four of these spunky shell dwellers and i have started to notice three of the four are not keeping there dark color. instead most of the time they are a solid goldish color still with the pearls down the sides. but the weirder part is they will change right in front of my eyes when they eat or seemed provoked. i dont know if its stress or what? other than that though they seem to act just fine. so i was wondering if anyone else has experienced this?