1. Fancy and Common Goldfish should not be housed together. The Common will become aggressive with your Fancies as he matures. He is especially a danger to your Bubble Eye.
2. What size is your tank? For the 3 you have, you need a minimum of 75-gallons. Re-home the common, and your 2 Fancies need at least 30-gallons. If you don't have more than that, then your tank can't handle any more spice.