Right well my parents have had a pond in their garden for years now, and every now and then fish die(as they do), but the week just gone they lost the lot. Started off with 2 of them getting a white crusty looking stuff all over them, mum took them out they were still alive but stiff, she put them in a bucket and they died. She caught all the other fish and put them in clean water away from the other 2, and they all died within days. Same things, going white and stiff. Any ideas what might have happend to them? She is taking a water sample to the fish place 2moz, and I am emptiyng the pond and giving it a good old clean. Hope to put some more fish in there in a couple of weeks.
Thanks for your advice