i had trouble with my gouramis,
the male constantly chased the female :(
then i decided to split them up,phew harmoney at last
or so i thought.
The male was now in with the barbs,and going great,(he still is)
however it was then the female who became the
beast from hell,she harrassed my Dwaf blue
to death :( to say i was gutted is an understatement
i loved that little guy,then two sunset reds,
she was returned to the shop.
that's just my experiance with the larger ones,
would never keep them again.
maybe i was just unlucky.