Marble hatchetfish paired with corydoras habrosus.
It's not really the best I can do, but I think it'd be an interesting grouping.
L
We're going to need numbers L. Don't let the Mod side down!
If it's densly planted... Hmmmmmmm
Blast! Why couldn't you make this a 40g breeder? Then I'd say 25 hatchets and 25 catfish, but you'll have to settle.
15 hatchets
15 C. habrosus
With patches of E. tenellus, and smaller swords, with frogbite on the surface... Intertwined with bogwood roots, and river rocks, sandy bottom. I see the scape already in my mind and it is stunning, watching the 15 habrosus skim over the rocks and wood as the hatchet fish hover near the surface like little birds...
L