Arsenic gives a specific flavour similar to fennel so I reckon those eels and catfish would have had tasted pretty good, you must have ate a few gunna because arsenic was extensively used used in the feed of dressage and racehorses in the seventies and eighties to improve their coat and last time we went fishing I noticed your skin was absolutely glowing , only downside is that if you put too much arsenic in the feed, their coat would fall out , so you must have ate plenty gunna