Hi,

One of 4 goldfish in our outside pond has developed a fairly large white
patch (almost square in shape) on it's side.

Anyone know what it could be and what could have caused it?

The four fish have been doing great until now - they seem to be growing
very well.

There is currently no weed in the pond at all - due to my partner
throwing it out (it's winter time, and she thought it had died, so
biffed it). I don't think this is related to the problem though, but
thought I should mention it in case it is.

--
Duncan