Lizard Goby Care Guide
Rhinogobius flumineus · Freshwater Fish
What Lizard Goby look like
The Lizard Goby (Rhinogobius flumineus) exhibits a robust, laterally compressed body that can reach a maximum adult size of approximately 3 to 12 inches. Its coloration is predominantly mottled brown, which provides effective camouflage against its natural streambed habitat, resembling the texture and appearance of a small lizard. Sexual dimorphism is evident, with males displaying more vibrant and colorful markings during the breeding season, particularly on their dorsal and caudal fins. The species possesses fused pelvic fins that form a disc-like structure, aiding in its bottom-dwelling lifestyle. Notably, the Lizard Goby features a well-defined lateral line, which is crucial for detecting vibrations in the water, and its dentition is adapted for a carnivorous diet, with small, sharp teeth designed for grasping prey.
Behavior & temperament
The Lizard Goby is primarily a benthic species, often found dwelling on the substrate of freshwater streams and rivers in East Asia. It exhibits a solitary to semi-social behavior, with individuals occasionally forming loose aggregations in favorable habitats. This species is not an obligate schooler, but it may be seen in small groups during breeding periods. Breeding behavior involves egg scattering, where females deposit adhesive eggs on submerged surfaces, which males subsequently fertilize. The Lizard Goby is generally characterized by a calm temperament, although it can display territorial aggression during the breeding season, particularly among males vying for prime nesting sites.
Diet & feeding
In the wild, the Lizard Goby is a carnivore, primarily feeding on small invertebrates, such as insect larvae and crustaceans. In captivity, it requires a diet rich in protein, including high-quality frozen or live foods like brine shrimp, daphnia, and bloodworms to maintain optimal health.
Behind the name
Rhinogobius (from Greek 'rhino' meaning nose and 'gobius' meaning goby); flumineus (from Latin 'flumen' meaning river, indicating its riverine habitat).
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Lizard Goby?
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