My husband's in that same 'No more fish' club. :) The dwarf guys only get to be an inch and I think 5 gallons is their minimum recommended size, so that hardly takes up ANY space. :D And they like densely planted tanks. Either live or silk. They're very, very cute. Hard to resist too.
Not too hard. The hardest thing was getting him to take to frozen bloodworms but I kept putting them in the same place every day on a piece of driftwood and I got up on day 3 or so and they were gone. Now he eats them from tweezers for me. :D And they need a 50% weekly water change cause they're messy, messy, eaters. He's really cool. He sleeps at the top of the tank cupped in the top of his water wisteria. And he looks at you like this O.O! :)