Neon Goby

About

Found threading through fast-moving, oxygen-rich streams in Sumatra, Indonesia, Stiphodon ornatus is a dwarf goby that stays well under two inches even at full size. Like other members of its genus, it belongs to a group known as neon gobies or rhinogobius-type gobies that spend their adult lives in clear, well-oxygenated freshwater while their larvae drift through estuaries before making the upstream migration back into rivers. A lifestyle called amphidromy. In the aquarium this translates to a fish that appreciates decent water flow and a well-established tank with plenty of natural surfaces to graze on. Males of Stiphodon species tend to be more colorful than females, often displaying vivid patterning used in territorial and courtship displays, and a group will set up loose territories across rockwork and substrate. Despite that territorial streak, the small size of these fish keeps any squabbling fairly harmless. Given its compact footprint and listed beginner-friendly care level, it fits well into smaller species-appropriate setups. Keep it with calm tankmates that won't outcompete it at feeding time, and offer biofilm-rich surfaces or supplemental algae-based foods to mimic its natural grazing diet.