been a while! lol i had computer problems, so sorry about this delay.
anyway, i was told the tank was big enough by the cichlid specialist, and i believed him too because of the tanks size. i said 'ill think about it' and returned home (im waiting to give away my current aquarium).
i had underestimated the size of a 4 ft tank.
its dimensions are 4 foot by 2 foot by 2 foot, which is just below 120 gallons. sort of explains why i was comfortable with it doesnt it? :P
im certain thats plenty for one Oscar and if it is not, tough luck, im shoving one in there anyway
edit:
just kidding, i wouldn't do that to a fish lol, im certain its big enough.