Did you notice if his color faded out at all? Some of the gouramis sold at stores are very fragile and, from what I understand, carry a disease specific to that species. I lost mine to it. Healthy one day, downhill fast after that.
75: blood parrots, featherfin cat, emperor tetras, turquoise rainbowfish, BN plecos, japanese trapdoor; 46: WCMM, gold inca snails, ghost, bamboo & amano shrimp, kuhli loaches, rummynose & ember tetras, endlers, platies, flame gourami, guppies; 16: pygmy, peppered, loxozonus corys, otos, assassins, RCS ... ~ Research PRIOR to purchase.... ~