My forum is debating the correct long-term temperatures for fancy goldfish. What do you think? Paul Green of the Ranchu Brotherhood and the Goldfish Society of Great Britain gives his opinion. The ...

A) DR PETER BURGESS REPLIES: Looking at the photo, your Ryukin goldfish appears to have a skin growth, possibly a type of tumour known as a fibroma. Skin fibromas are fairly common on goldfish. Over ...