very interesting...
my boyfriend & i have an oscar that has been around 6 years, & a jack D. for 8 years. they seem to be happy, & of course have the right size of tank.
i had an angel fish that believe it or not died just last week. i went on vacation, had my mother watch them, & well, poof!=/ i had him forever! that thing was HUGE in my 90 gallon tank. it was a black & white marbel one, but it started to get a blue strip on the one side of its face, & the other side had an orange strip! it was beautiful=] i miss that pretty thing~! =/