More info
Datasheet
| Minimum Tank Size | 100 litres / 26.42 US gallons |
| Maximum Size | 5.0cm / 1.97inches |
| Reef Compatible | Always reef safe |
| Temperament | Peaceful |
| Temperature | 22.2°C / 71.96°F - 25.6°C / 78.08°F |
| Specific Gravity | 1.020-1.025 |
| Carbonate Hardness | 8-12 |
| pH | 8.1-8.4 |
General Description
The Rubyspot cardinalfish, scientifically known as Ostorhinchus rubrimacula, belongs to the Apogonidae family. These cardinalfish come in various shapes and colors and are generally well-suited for aquarium environments. They have a large appetite, often feeding on Artemia, Mysis, and krill, making them compatible with a wide range of foods.
Aquarium Suitability
The Rubyspot cardinalfish is suitable for most aquarium setups, provided there is ample space and hiding spots. They are peaceful towards other fish but may exhibit territorial behavior if space or food is limited. This species can also coexist with its own kind if introduced simultaneously.
Care and Hardiness
Known for their hardiness, Rubyspot cardinalfish are relatively easy to care for in a home aquarium. They require good hiding spots like live rocks and may display nocturnal behavior, seeking shelter during the day. Maintaining stable water conditions with a pH of 8.1-8.4, a temperature range of 22.2-25.6°C, and a specific gravity of 1.020-1.025 is crucial for their well-being.
Reef Suitability
Rubyspot cardinalfish are considered reef-safe and can thrive in reef tank setups without causing harm to corals or other invertebrates. Their peaceful temperament makes them a good addition to a reef community.
Aquarium Setup
When setting up an aquarium for Rubyspot cardinalfish, ensure there are plenty of hiding places such as live rocks for them to feel secure. A minimum tank size of 100 liters is recommended to accommodate their active nature and potential territorial behavior. The water should have a hardness level (KH) of 8-12 and be properly aerated.
Behaviour
These cardinalfish are generally peaceful but may engage in minor skirmishes within their species if space is limited. They tend to be more active during the night, preferring to seek shelter during daylight hours. Providing ample hiding spots and enough space can help minimize any aggression.
Feeding and Diet
Rubyspot cardinalfish have a varied diet that includes small crustaceans like krill, Mysis, and Artemia, as well as zooplankton such as Cyclops and pods. In an aquarium setting, they are opportunistic feeders and will consume most types of food offered to them.
Habitat and Distribution
Native to the Western Central Pacific, Rubyspot cardinalfish can be found in regions ranging from the Ryukyu Islands south to Australia and eastward to the Fiji Islands. They prefer coral reefs and rocky areas with abundant hiding spots where they can shelter during the day and forage for food at night.