muddyfox wrote:

Would a small group of Tiger Barbs (say 6-8) be OK with Leopard Danios.

Probably not. You'll more than likely start finding leopards dead or
with only one eye - harassing timid/smaller/ill/weaker fish, and eating
eyes, are trade-mark tiger barb behavior. The whole group will
relentlessly chase any fish showing any sign of weakness.
Tiger barb, like chinese algae eater, are among those fish I don't
recommend to people who just want something for their community tank:
they're not community fish.

Fortunately most barbs aren't anything like tiger barbs, and many of
them are prettier to boot. I'd suggest looking in to five-banded barbs
(Puntius pentazona,
http://filaman.ifm-geomar.de/images/...s/Pupen_m0.jpg ) for a fish
which is much nicer and more colorful, yet still looks much like tiger
barbs.
Other nicer alternatives include e.g. Puntius rhomboocellatus
(http://www.israquarium.co.il/FishPho...oocellatus.jpg )
or Barbus fasciolatus
(http://www.israquarium.co.il/Fish/Ba...sciolatus.html ).
All of these should be reasonably easy to find - although not as easy
as the ubiquitous tiger barbs.