Red Spot Cardinalfish

The Red Spot Cardinalfish, scientifically known as Ostorhinchus parvulus, is a small, vibrant marine fish native to the coral reefs of the Coral Triangle in Southeast Asia. This species is particularly notable for its iridescent body adorned with striking red spots, making it a favorite among aquarium enthusiasts and collectors alike. Adult Red Spot Cardinalfish typically reach a maximum size of around 7 cm, allowing them to easily fit into various aquarium setups without requiring extensive space.

In terms of behavior, Red Spot Cardinalfish are generally peaceful and social creatures, often found in small to medium-sized schools within their natural habitat. They exhibit a shy demeanor, preferring to hide among the crevices and overhangs of coral reefs during the day. Their nocturnal feeding habits lead them to venture out at night to hunt for small zooplankton and crustaceans, making them fascinating to observe in an aquarium setting.

Habitat-wise, these fish thrive in warm, shallow waters with plenty of structure, such as coral reefs, where they can find shelter and food. The Red Spot Cardinalfish’s adaptability to various reef environments contributes to its popularity in the aquarium trade, as it can be maintained in a variety of community tank setups. They prefer well-oxygenated water with moderate to high flow, which mimics their natural oceanic conditions.

With their striking appearance and engaging behavior, Red Spot Cardinalfish are an excellent addition to any marine aquarium. Their compatibility with other peaceful species makes them ideal for community tanks, where they can display their unique characteristics in a safe and nurturing environment.

For successful care of Red Spot Cardinalfish, aquarium importers and retailers should ensure optimal water parameters. The ideal temperature range is between 24°C and 28°C, with a salinity level of 1.020 to 1.025 ppt. Maintaining a pH level between 7.8 and 8.4 is also crucial for their health and well-being. A minimum tank size of 100 liters is recommended to provide ample swimming space and reduce stress among these social fish.

Feeding Red Spot Cardinalfish is relatively straightforward, as they are omnivorous and thrive on a varied diet. High-quality flakes, pellets, and frozen foods such as brine shrimp and mysis shrimp will ensure they receive the necessary nutrition. It's important to feed them small portions multiple times a day to mimic their natural foraging behavior.

When introducing Red Spot Cardinalfish to a new environment, a gradual acclimation process is essential. This can be achieved through drip acclimation over several hours to minimize stress. Quarantine procedures should also be followed to prevent the introduction of diseases into the main tank. These fish are compatible with other peaceful marine species, making them ideal for community setups, but care should be taken to avoid aggressive tankmates.

Red Spot Cardinalfish are suitable for shipping, provided proper care is taken to ensure their health during transit. They should be packed in secure, breathable bags with adequate oxygen and water to minimize stress. The ideal shipping temperature is between 24°C and 26°C, as they are sensitive to extreme temperatures. CITES status for this species is not applicable, allowing for easier export and trade.