my crayfish's tank doubles as a feeder guppy breeding tank. i feed those guppies to my turtles and to my sun cats, but the gouramis do like to get in on the chase, so i'm sure they get their fair share, though i've never actually seen one eat any of the baby guppies. my gold gourami will comically chase guppies around plants, rocks, etc, and occasionally crashes into the glass chasing them.