^__^;; That's why I'm an amatuer hobbyist!! I've never thought of it that way. I kept neons in fivers many times and never knew the wiser. But the clouds would do fine, wouldn't they? I know they are schooling fish, but I've seen groups of three or four that did... well... swimmingly. XP
And... ummm... seems like keeping a dwarf gourami alone in a five-g would be depressed. Mine was always so curious and loved being around the other fishes and when I removed him into a 2.5 for a couple of weeks of quarantine, he lost color and looked... well... sad! O.O