They demolished it quicker than cucumber and both of the 3" x 2" x 1.5" (approx) chunks that I put in were gone within an hour! 
I thought I'd share a few photographs, taken under blue moon lighting:
First out to try it (after the greedy barbs of course...) was one of the smaller Clowns:
Just look at these two getting stuck in!
Another action shot:
One of the larger loaches takes a chunk out of it:
Starting to gather round the melon in numbers now!
Marge enters the mix....
and sees off a lot of the 'smaller' competition....
"Mine, all mine"....
Emma
Resistance is futile. You will be assimilated.
Apparently I'm entitled to get the components replaced free of charge from a certified Nikon repairer, and typically, there are none near me. I think it'll have to be sent away for a few days, which I'm not very happy about. It even let me down on Weds night when I went to watch my beloved a-ha play at the London Docks! 
We had free entry into the British Motor Show that evening too - Martin, you would have been in your element!
