Fish or family? fish or family? fish or family? I think I would have to agree with you Phil and say fish, at least they don't want anything except feeding now and again...... 
And boy, did "Big Koi" enjoy the worms, leather-jacket grubs, and other assorted delicacies that I unearthed while removing what had once been bowling-green lawn beyond the anti-heron netting. I have had to dig the whole lot up and will have to start again

From now on, the anti-heron netting will have to come down every time I mow the lawn, so I can keep both sides in the manner to which they were once accustomed ...
Anyhow, as it turned out, it was fish
and family

I finished the netting at 18:55, with the next train to London at 19:25. Despite the fact that the meal was due to start at 19:30, and Marden Station is about 1H10 from the restaurant, I decided to go anyway and rely on the fact that in my wife's family (Chinese/Vietnamese)
nothing starts on time. I arrived at the restaurant at about 20:35 to find them still enjoying their first course (lobster with noodles, and crispy-and-aromatic duck). So, grabbed a bowl, got stuck in, and had a wonderful meal. Just got back home, checked on the fish, they still seem happy and well, so off to bed after a good day. Good night, all !
** Phil.