Arrow gobies are native to the eastern Pacific Ocean, ranging from British Columbia to Baja California. They inhabit shallow coastal waters, especially bays, estuaries, and tidal mudflats with sandy or muddy bottoms. Arrow gobies often share burrows with shrimp species, using them for shelter from predators. Their diet mainly consists of small crustaceans, worms, and other tiny invertebrates found in sediment. They are small fish, typically growing to about 4–6 cm (1.5–2.5 inches) in length. Key identifiers include their slender, semi-transparent body, pointed head, and fused pelvic fins that form a suction disc typical of gobies. An interesting fact is their symbiotic relationship with burrowing shrimp, where both species benefit from shared shelter. They are not targeted by anglers due to their size but may be observed in intertidal habitats. Sources: FishBase (https://www.fishbase.se/summary/Clevelandia-ios.html) and iNaturalist (https://www.inaturalist.org/taxa/116303-Clevelandia-ios)