Hi all. I would like to build up a Gourami tank, but I heard that they are close to the Betta family, so males will fight eachother. In the fish profiles on this website it says that the Pearl Gourami is peaceful and suitable for a community tank. The question is, how will it react to another male Pearl Gourami? Another question would be how a Pearl Gourami, Blue Gourami (both males) react together? And last but not least, will Pearl Gouramis eat small fish like cardinal tetras? Thank you for your answers(and time).