The name Goby is given to fishes belonging to the family Gobiidae which is one of the largest families of fishes in the world, containing more than 2,000 species. Most gobies remain fairly small, growing no more than 4 inches in length, with some species growing less than 1 inch long. Each species is unique, but freshwater gobies are generally peaceful community fish that can be kept with other community species.  Freshwater gobies are generally peaceful community fish that can be kept with other community species.  please make sure to research individual species these fish often require high water flow and have differences in diet & care.