Indian Mudskipper Care Guide
Periophthalmus novemradiatus · Freshwater Fish

What Indian Mudskipper look like
The Indian Mudskipper (Periophthalmus novemradiatus) exhibits a distinctive morphology characterized by a laterally compressed, fusiform body that can reach a maximum adult size of approximately 15 cm. This species displays sexual dimorphism, with males typically exhibiting more vibrant coloration and larger dorsal fins compared to females. A notable adaptation for its semi-terrestrial lifestyle is the presence of elongated pectoral fins, which are modified to function as limbs for locomotion on land. The species possesses a well-defined lateral line system that aids in detecting vibrations in its environment. Additionally, its dentition is adapted for an omnivorous diet, featuring small, conical teeth suitable for grasping a variety of prey. The skin is smooth and covered with a mucous layer that aids in respiration and moisture retention during terrestrial excursions.
Behavior & temperament
The Indian Mudskipper is primarily a benthic species that exhibits a semi-aquatic lifestyle, frequently found in intertidal zones where it can alternate between water and land. It is known for its social behavior, often forming loose aggregations, although it can also display territoriality, especially during breeding seasons. Breeding behavior involves males establishing territories and performing courtship displays to attract females. The species is an egg scatterer, with fertilized eggs typically deposited in moist substrates. In terms of temperament, the Indian Mudskipper can exhibit moderate aggression, particularly among males competing for territory or mates.
Diet & feeding
In the wild, the Indian Mudskipper is an omnivore, feeding on a varied diet that includes small invertebrates, algae, and detritus. In captivity, it requires a balanced diet consisting of high-quality pellets, live or frozen foods such as brine shrimp and bloodworms, along with plant matter to mimic its natural foraging behavior.
Behind the name
Periophthalmus (from Greek 'peri' meaning 'around' and 'ophthalmos' meaning 'eye'); novemradiatus (from Latin 'novem' meaning 'nine' and 'radiatus' meaning 'radiated', referring to the nine distinct radiating lines on its body).
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Indian Mudskipper?
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