Hi, I just got my pair of synspillus that I ordered from Jeff Rapps, they are about 3" and already have some beautiful colors on them, I have never kept these before, and was wondering haw fast do they grow, how agressive are they, and can they be kept long term with the Carpintas Escondido's that I also got from Rapps in a 6 foot tank. any info is greatly appreciated, I now have my dream fish and hope that they can live peacefully together.