I bought a comet feeder goldfish last week from pets'mart the next day it died, which I'm not that suprized but still a little disapointed because comet goldfish are one of my all time favorite fish. Is there anyway of getting a comet goldfish that will live? What is the best envirment to keep them in to ensure they will live? I have the one in cycling tank which probably wasn't the best thing to do but the ph was good for him/her.