Care
The Ghost Cardinalfish is known from shallow, turbid bays and lagoons, where it forms dense aggregations above mounds of branching
Porites cylindrica coral, to depths of 12m (39ft). This nocturnal species often forms shoals with other cardinalfish, such as
Taeniamia fucata and
T. zosterophora. The aquarium should be aquascaped with plenty of live rock, creating lots of shady hidey holes and overhangs (do ensure these are secure). The more places of safety available to these fish, the more you will see them out in the open, as they will learn that they can quickly retreat if necessary. Ghost Cardinalfish are a shoaling species and really should be maintained in small groups of at least 5-7 specimens, introduced simultaneously. Keeping these fish in decent numbers will not only make the fish less nervous, but will also result in a more effective, natural-looking display. It is important that tankmates are of a peaceful nature; they should not include large, carnivorous, or intimidating species (the latter which may prevent the cardinals from feeding). Ghost Cardinalfish are best kept in a reef situation. Unlike many of their relatives, this species is much less of a threat towards other small fishes and crustaceans, and will really only prey on the tiniest of shrimp. On occasion, Ghost Cardinalfish will be seen hiding amongst the long spines of
Diadema spp. sea urchins. As with many cardinals, these large-eyed fish are active during the evening/night, and a period of blue moon lighting will enable you to observe their antics more closely after the main tank lights have been switched off. May also be seen on sale as the Blue-Eyed Cardinalfish, Bluestreak Cardinalfish, Longspine Cardinalfish, or Threadfin Cardinalfish.
Feeding
Offer a variety of meaty items such as Mysis shrimp, vitamin-enriched brineshrimp, finely chopped krill/cockle/clam meat etc. Feed small amounts 3 times per day, with at least one of the feeds after lights out.
Breeding
Ghost Cardinalfish form distinct pairs during courtship and spawning. The male fish will mouthbrood the egg mass until hatching. The larvae are then released into the water column, where they develop for some weeks before settling out of the plankton. Once released, there is no further parental care. Has been known to spawn regularly in the home aquarium.
