How hard are they to keep?
We would class Schismatogobius risdawatiae as a moderate care level fish. They are best suited to aquarists who can provide clean, well-oxygenated water, a good current and a suitable substrate for their natural bottom-dwelling behaviour.
What is its maximum size?
They reach approximately 3cm in standard length, excluding the tail.
Where are they from?
They are native to Sumatra, Indonesia, where they have been recorded in shallow freshwater streams with moderate to fast-flowing water and gravel or boulder substrates.
What are the ideal water conditions?
They require clean, well-oxygenated freshwater with a moderate to strong current. A temperature of around 22–27°C is a reasonable starting point for aquarium care, alongside stable water parameters and excellent filtration. Provide a sandy or fine-gravel substrate, smooth stones and plenty of natural surfaces.
What do you feed them?
Offer a varied diet of small live and frozen foods, such as baby brine shrimp, daphnia and other tiny aquatic invertebrates. Small, appropriately sized sinking foods may also be accepted. Feed carefully to ensure they receive enough food, as they are small bottom-dwelling fish that may struggle to compete with larger, more active tank mates.
How compatible are they with other fish?
They are best kept with small, peaceful fish that appreciate similar flowing-water conditions. Avoid large, aggressive or boisterous tank mates. Provide plenty of space, rocks and sheltered areas, and monitor interactions between individuals, particularly males.