This is a discussion on OKAY! within the Freshwater and Tropical Fish forums, part of the Freshwater Fish and Aquariums category; -->
hm ok. its just that neons are so boring and i want lots of colour...
just my two pennies worth..........
you could just have a barb tank,plants and wood,
it would look lovely,or
i'll echo the other members opinions,and say
don't mix the barbs,it is a risk.
The cardinals would make a fantastic show in a large group.
I would actually say a male and a female. I know you don't want babies but they don't spawn readily and if they do you can remove the eggs as I think they are happiest in a male and female pair. However, if you want 2 of the same sex I think there would be less agression with 2 females than with 2 males.