I used to have goldfish when I was a kid. Like you Mick I 'won' them at a fair but they were as hard as fucking nails. I kept them in a food mixer bowl but they rufused to take food off the surface so I bought another fish and this one knew how to eat The other two followed suit and began eating properly. A couple of days later the fish I bought to encourage the other two to eat was dead, it had marks all down one side of its body, Im sure the other two beat it to death.