You got to see my butterfly telescope babies grow up from little one-week-old "eyelashes" and now just look at the beauties they've become! They're almost one year old now and I'm so pleased with how they've turned out. These are the seven that I have decided are my keepers for future breeding; the others have already all been sold. PLEASE NOTE: They do not live in this tank! They were placed in this 40 gallon display tank for the video only. I normally only house two fish this size in a tank this size. Adult goldfish should have 20 gallons of space per fish to stay healthy and happy.