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Threadfin Cardinalfish
Apogon Leptacanthus
The Threadfin Cardinal is a peaceful, sometimes timid marine fish as it glides around the tank effortlessly. These fish should be kept in groups of at least 5 as a group they will establish their hierarchy relatively peacefully
The Threadfin cardinal requires a tank of 70 litres or larger with plenty of hiding places, it likes to hide in sea grass like caulerpa sp. when available. The threadfin cardinal is reef safe and will not touch any corals or shrimps. They usually adapt well to frozen and even dried foods, but should be supplemented with meaty foods like brine shrimp and crustacean flesh.
Approximate Purchase Size: Medium 2cm - 4cm
Due to variations within each species, your aquatic life may not look identical to the image provided.

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Fish Statistics
- Minimum Tank Size:
- 70 litres
- Diet:
- Omnivore
- Origin:
- Indo-Pacific
- Temp (C):
- 22-27 C
- Max Size:
- 6 cm
- Family:
- Apogonidae
- Reef Compatible:
- Yes
- Temperament:
- Peaceful
- pH:
- 8.1 - 8.4
- Salinity:
- 1.020-1.025
- Care Level:
- Moderate
- Compatibility:
- See Tank Mates Chart below
Buy Threadfin Cardinalfish
Medium 2 - 4cm
- 1 or more items - £10.00
Tank Mates
We recommend pairing your Threadfin Cardinalfish with these other fish: