I live in the UK. Last year I had a visit from a heron and he cleaned out
all my goldfish.
so since then I have rebuilt my pond and made it bigger so I can switch over
this year to Jap Koi Carp, I have put in a larger better filtration system
and pump, But my only fear is that dammed Heron, so if any one can sagest a
way to stop his visits this year especially after I restock with koi I would
be grateful.
Mostyn