Red and White Oranda

Oranda goldfish have a double tail like the fantail goldfish, but also they are known for their wen on top of their heads. This is a benign growth of the skin tissue that can overgrow with improper diet and wonky genetics. Your tank should be 30 gallons to give these fish the space they need. An overgrown wen requires trimming by your veterinarian. Do not attempt to trim this yourself or you may severely damage their delicate eye tissue, rendering your fish blind.