Fish – The Truth

I know it's been like torture, so here is the answer to yesterday's teaser..
The names of my fish were inspired as follows:
NELSON after Nelson Mandela (not after the famous son of Norfolk, Horatio Nelson, as many of you thought)
BUCHNER after Eduard Buchner (1860-1917) who importantly combined my favourite subjects of alcohol and chemistry.
RILEY after Countdown's numbers babe Rachel Riley. I know – I'm as shallow as the water in my fishtank.

RC 21-4-10