More info
Datasheet
| Minimum Tank Size | 60 litres / 15.85 US gallons |
| Maximum Size | 3.6cm / 1.42inches |
| Temperature | 19°C / 66.20°F - 24°C / 75.20°F |
| Hardness | 5.04dgH / 90ppm - 12.05dgH / 215ppm |
| pH | 7.0-7.8 |
Behaviour
The Rhinogobius Zhoui can be kept in a community tank, especially with small, peaceful fish that occupy the upper part of the water column. They tend to be territorial with each other but serious damage is unlikely as long as there is enough cover. These gobies appear to need the presence of conspecifics. It is advisable to have at least two males and multiple females to prevent the fish from becoming inactive. They should not be mixed with other Rhinogobius species to avoid potential hybridization issues. Small invertebrates such as certain shrimp species are usually preyed upon.
Feeding and Diet
The diet of Rhinogobius Zhoui should mainly consist of small live and frozen foods like mosquito larvae, bloodworms, and Artemia. Dried foods can be accepted but should not be offered regularly, particularly if breeding is desired.
Reproduction & Dimorphism
Reproducing Rhinogobius Zhoui in an aquarium can be challenging. The male guards the eggs, which are typically deposited on the ceiling of a cave or crevice. Males do not defend a single site but patrol an area, potentially disrupting other males. It's recommended to use one or two males and multiple females for breeding. The male will fan the eggs until they hatch, and specific water conditions are crucial for successful breeding. Adult males are more colorful than females, with extended unpaired fins that have bright bands.
Habitat and Distribution
Rhinogobius Zhoui is restricted to shallow, well-oxygenated headwaters of streams in Guangdong Province, China. Their habitat consists of riffles, runs, and pools with substrates of rocks, sand, and gravel. The species is widely distributed throughout continental Asia in countries like Russia, Korea, China, Vietnam, Laos, Cambodia, and Thailand, as well as various islands in the Western Pacific.
Aquarium Setup (see table)
To simulate their natural habitat, set up the tank with a substrate of variably-sized rocks, sand, fine gravel, and water-worn boulders. Add driftwood branches, ceramic pipes, and plant pots to create hiding spots and broken lines of sight. Hardy aquatic plants like Microsorum and Anubias spp. can be attached to decorations. Water should be pristine with weekly 30-50% water changes. Ensure sufficient dissolved oxygen and some water movement in the tank.
Water Conditions
- Hardness: 90-215ppm
- pH: 7.0-7.8
- Temperature: 19-24°C