Sphaerichthys vaillanti, AKA Vaillant's chocolate gourami.
Anyone selling these cute lil' boogers?

Anyone selling these cute lil' boogers?

Remarks: A demanding species, recommended only for expert aquariasts. Water must be changed often, and a good water conditioner must be used. The Chocolate Gourami is the most difficult Labyrinth fish to care for. It is extremely delicate and is susceptible to parasites, fungus, bacteria, and disease. The Chocolate Gourami is a short-lived fish. A sub-species, S phaerichthys osphromenoides selatanensis has been identified. It has more stripes and a darker body color