I have to say, I once had a flatmate who worked in the Sea Life Centre. They employed him as a tank technician with NO experience whatsoever, he'd never even kept a fish in his life! With little or no training he worked there for a good year. Turned out in that time he'd completely killed off two large tanks of fish. One because he hadn't kept a good eye on the parameters, and one because he left the drainer on and forgot about it!!! He drowned every poor fish in that tank! Needless to say, he was given a warning and soon sacked. But it just goes to show how un-picky Sea Life Centres are with their staff. Mind you, with the pay they offer - what do they expect?
I remember his girlfriend bought him a tank of his own. He couldn't even keep that properly. He had tropical fish in the tank with a heater that BLATANTLY didn't work (the water was always freezing), he put...wait for it....2 siamese fighters, and angel, a shoal of neons and...and axollotyl (not sure how to spell) (!!!) in the tank together. Within hours, half of the neons had been eaten by the axollotyl, within days one of the siamese fighters was so badly damaged he got awful diseases then died, and soon after that most of the tank died from velvet. In the end, all that was left was the axollotyl that was seemingly invincible. I kept on telling him what was wrong with his tank and what he shouldn't get etc (as did the LFS keepers) - but the idiot wouldn't listen. I saw him a couple of years ago and he still had the lizardy thing, and had it 'out in the paddling pool' for the day! That man should have a ban on keeping ANY animals. Moron.