i just bought a new acro and this was a big suprise i tiped it upside down a little and on the bottom of it was a small blue starfish (seastar to be competly correct) was on the bottom. and with a little reshurch it was not the impossable to keep blue stsrfish, it was one that can live forever in a reef aquarum if some somewhat simple requirments are met it can live a full life in captivity. i didint even thank that there was any starfish of an type that could live in captivity.. sorry i forget the name off hand. it also sais that it can reproduce asexually by spliting itself. what is weird is one leg is freakshiley larger than the others. i just take it thats how it grows.