I had over 40 fish in my pond and every day last week one or two were dead. We cleaned the pool out and removed the poorly looking fish who later died. We had several strong swimmers who seamed ok and put them back but last night another one died and today several more look lifeless
I've only got 7 left
they are normal garden pond gold fish about 3 years old.
Does anyone know whats happening ?

I've only got 7 left

Does anyone know whats happening ?
