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Cardinal Fishes
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Banggai Cardinalfish
(Pterapogon kauderni)
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Tank: A peaceful aquarium with plenty of sea grassor Caulerpa spp. algae is ideal, but fish will settle into most quiet aquariums containing live rock and corals. 15 gallons. Can be kept in large shoals in a sufficiently larger aquarium.
Aquarium Behavior: Try to obtain pairs, otherwise fighting can occur, often resulting in the death of the weaker individual. The Banggai cardinalfish is not the most active fish, usually hanging motionless in the water.
Maximum Length: 2-3.5 in
Food & Diet: Will accept most foods, including chopped shelfish, mysis, and brineshrimp. Males do not feed when brooding eggs and therefore require regular feeding between breeding cycles; otherwise, they can consume the egg mass.
Reef Compatibility: Will not harm corals, but may attack small ornamental shrimp such as (Thor amboinensis).
Quick Notes: If a long-spined sea urchin is provided, it is also possible to observe the unique relationship that the juveniles and adult have with this invertebrate. This species will breed in the aquarium, females deposit eggs in the form of a cluster or ball. One of the easiest marine fish to breed and raise successfully in captivity. It has achieved considerable popularity with marine aquarists over recent years.
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Pajama Cardinalfish
(Sphaeramia nematoptera)
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Tank: Fish-only; live rock based fish-only system; or reef aquarium. Keep singly, in pairs or in small groups. In a brightly reef aquarium, it will hide in the rockwork for much of the day. More active at night or under blue actinic lights.
Aquarium Behavior: Reserves most aggression for other pajama's but even this is not particularly problematic.
Maximum Length: 4 in
Food & Diet: Will accept most foods, including chopped shelfish, mysis, and brineshrimp. Most fish will take flaked and granular foods. It is vital to feed mature fish several times each day, especially when breeding.
Reef Compatibility: Will not harm sessile inverts. or most ornamental shrimp.
Quick Notes: This species will breed in the aquarium. Being a shy and unassertive species, the pajama can become the victim of more aggressive species. Damsels and dwarf angelfishes can be problematic if resident in a smaller aquarium before the cardinalfish is introduced.
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