"Flash Wilson" wrote
Instead of a community tank with carefully matched fish which all
enjoy the same water parameters and get along well, how about a
stripey tank, a spotted tank, and a plain colour tank!

That's not so daft as it sounds.
Picking fish that match/complement either in colour or markings
can create a very pleasing effect. Especially in a planted tank.
Of course your first point about matching water parameters etc
still must hold good.

--
Graham Ramsay
You might be a Bright:
www.the-brights.net