NetMax wrote:
Non aggressive community fish suitable for a 20g tank would be most any
tetras which do not exceed 3", corydorous catfish, kuhli loaches, any of
the 4 main livebearers (though the Molly would prefer salt in their
water), small algae eaters such as Oto cats & SAEs, many barbs (ie:

Ahem... SAEs will very quickly get too large for a 20g. Mine grew from 1"
to 4" in less than 4 months.

Cheers.

--
Victor M. Martinez

http://www.che.utexas.edu/~martiv