I'd go for a Pearl Gourami. They grow to be 4", large enough to eat your neons, but as long as you feed it enough, I wouldn't worry. I'd be a little worried about the tank size, though.
I was told corries didn't eat guppy fry. Also, they like to be in groups of at least 3.
I was told corries didn't eat guppy fry. Also, they like to be in groups of at least 3.