The fish in the pic is indeed
P. mombassae. I think there was a cut-and paste done of the text and all references to P. miles weren't removed (also, M
ombasa is mis-spelled). It needs some cleaning up.
A 55 or 60 gal setup should hold an adult Mombasa fine, but a
P. miles should indeed be in a larger setup like a 100 or 120 (for a
P. miles, think
P. volitans in terms of care).
Oddly enuff, our Mombasa was ID'd as P. miles at the wholesaler...I have NO idea why, as they look NOTHING like a
miles. Now if the ID had been
P. antennata, I could get the confusion...
They don't look anything like
P. miles or
P. volitans, but are indeed "flamboyant":
P. mombassae:
P. volitans: