To try & make a new colour strain, you should pick out the best colourd males & females, & put them together.
Leaving all those colours together you're going to just get a mish mash of colours, which will eventually be diluted
I'm not sure but i think i saw a balloon molly too.
/www.youtube.com/watch?v=E0EC4w9rgmw&feature=BFa&list=UL-mqiuliPUgk