Stigmatogobius sadanundio is a species of goby native to south Asia from India to Indonesia including Sri Lanka and the Andaman Islands.

The water temperature should be raised to about 24–28 °C (75–82 °F), and the addition of salt helps induce spawning/ A sand substrate is required.

The gobies lay their eggs on the ceilings of caves, so an inverted pot makes a good substitute.

A pair may produce 1000 or so eggs each of which is attached to the cave ceiling by a fine thread.

Both parents tend the brood and the fry are relatively easily reared on newly hatched brine shrimp.