
Where to buy Ring-Tailed Cardinalfish
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Saltwaterfish
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Amazon
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Petco
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About Ring-Tailed Cardinalfish
A small, stocky cardinalfish with a reddish or orange-red body. The most distinctive feature is a prominent white or pale ring-like band around the caudal peduncle (tail base), giving the species its common name. The fish has a rounded head, large eyes typical of nocturnal species, and a compressed body shape characteristic of the Apogonidae family.
Key facts
- Max Size
- 3.5
- Feeding Schedule
- 1-2 times daily
- Appearance
- A small, stocky cardinalfish with a reddish or orange-red body. The most distinctive feature is a prominent white or pale ring-like band around the caudal peduncle (tail base), giving the species its common name. The fish has a rounded head, large eyes typical of nocturnal species, and a compressed body shape characteristic of the Apogonidae family.
- Min tank size
- 20 gallons
- Aka
- Ringtail Cardinalfish, Ringtailed Cardinalfish
- Water Parameters
- Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.023-1.025
- Family
- Apogonidae
- Origin
- Indo-Pacific region from Indonesia and Philippines to Australia and the Great Barrier Reef. Found in shallow to moderate depths on coral and rocky reefs.
- Common Health Issues
- Starvation if not fed small prey regularly, parasitic infections, bacterial infections if water quality declines
- Diet
- carnivore
- Care Level
- Easy
- Care Requirements
- • Minimum 20 gallon tank; larger tanks preferred for groups • Nocturnal species; provide dim lighting and caves/shelters for daytime refuge • Temperature range 72–78°F, pH 8.1–8.3, salinity 1.023–1.025 • Feed live or frozen small prey (copepods, mysis shrimp, small fish larvae) 1–2 times daily • Generally peaceful but may eat very small fish or shrimp; otherwise safe with most reef-safe tankmates
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