I'm talking dwarf or regular sized, not the giant gouramis. I'm wanting to put several together in a tank, preferably males, so I'm wondering which are the best for that. I've heard differing opinions. One person told me he put 12 male gouramis in a tank together (not sure what size) and they were fine. Then I've heard you should only have one male gourami per tank. What do y'all think? And which varieties would be best suited for this? Thanks!