Thanks everyone,
I went to a local fish room the other weekend and was amazed at one of his fish, im thinking it may have been a pacu, it was as big as the average snapper if not bigger and a nice golden/yellow color, similar to a severum.
Anyway it got me interested, im thinking i might get a 2mx1mx1m tank for the lounge.
an eel would be nice but if they're anything like the khuli loach... then ill get bored very quickly with it lol.
a pacu or a couple oscar's might be on the cards.