Stocking a 20 gallon tank!

Cutar

So hows about 3 dwarf gouramis and like 4 rasboras?

Byron

As explained in the profile, the Dwarf Gourami should be maintained only in a sexed pair in a small (to them) tank. Rasbora should be 6 or more, and 6 would work in a 20g.

burnsbabe

Bryon hit the nail on the head. The extra 9 gallons between my 29 and your 20 seems to keep my three happy. If you can grab a sexed pair you'll be gold.

And yes. I was talking about the medium sized and peaceful species. I've got the Lambchop Rasboras (Trigonostigma espi), but the Harlequins and the Hengels would be good too.

Cutar

So I should be getting a girl and a boy Dwarf Gourami so that they can pair up?

Byron

Yes. When aquarists speak of a "pair" it is understood to always mean a male/female pair. Some fish are easy to sex, others are not. In the Dwarf Gourami profile it mentions the external differences. Also note that warning on diseased fish; this is a very real concern with this species if purchased in stores (those from a responsible breeder should be better in this regard). The Honey Gourami is very similar and not prone to infection. Something to consider.