Cardinalfish – Biography, Habitat and 5 Interesting Facts


Cardinalfish has ended up being a very popular tropical fish due to its attractive and appealing look, minimal distribution, rarity, and intriguing facts about it.

Because of that, recently the fish has become a crucial and very important individual to the decorative coral reef fish trade. As a result, fishers earn a living by integrating Cardinalfish harvest with fishing for other types for the fish tank trade.

Cardinalfish is an extremely appealing fish with a basic yet advanced color pattern and marking. Its general body coloration is a sparkling silver, highlighted with pearly white areas. Strong, black stripes along the body highlight the long fins to sophisticated impact.

Pink Cardinalfish
Pink Cardinalfish

The fish in a well-filtered 30 gallon aquarium or bigger fish tank aquascaped with a generous quantity of live rock.

Thoroughly set up the fish tank landscape to develop a lot of overhangs, caverns, and crevices in addition to an open area for swimming. Cardinalfish with serene tank mates as it is a systematic and sluggish swimmer.

Groups of Cardinalfish can be kept in relative peace in bigger systems with a lot of swimming and hiding areas. Cardinalfish will also value moderate water current.

The Cardinalfish is fairly simple to reproduce in the fish tank setting. The male brings the eggs in his mouth to safeguard them when spawning has occurred.

Although the cardinalfish is simple and very easy to keep, wild-caught specimens are no longer an accountable option, as their collection threatens not just the fish, but possibly also the fish tank hobby itself. We take a look at the hazard of dealing with wild-caught specimens, and what aquarists can do to help in saving the types by declining to purchase wild-caught stock.

Most cardinal fishes are marine and live amongst reefs in shallow water.


Cardinalfish morphology and coloration

Cardinalfish, which can also be called Banggai Cardinalfish, is a ray-finned fish, thus the Class Actinopterygii. It has 8 overall dorsal spinal columns, 14 dorsal soft rays, 2 anal spinal columns, and 13 anal soft rays. This type is more noticed by it having a tasseled first dorsal fin and deeply branched caudal fin.

Both the 2nd dorsal-fin rays and anal fin rays are lengthened. Its skin color scheme is made out and really clear: it has 3 black bars throughout the head and body, black edges along the anterior margins of the 2nd dorsal and anal fins, black edges along the upper and lower margins of the caudal fin, and black pelvic fins marked with white areas. There is likewise a series of white areas that run along the edges of the 2nd dorsal, caudal and anal fins.

The body is silvery and extremely glossy, which includes about 20 spectacular white dots in between the 2nd and 3rd black bars. The body size of the grownups rises to 8 cm in overall length

Biography & Ecology

Twospot Cardinalfish

Cardinalfish size

The typical size of a lot of Cardinalfishes in captivity is 2 inches. These fish make terrific additions to a peaceful fish tank, adapting well to life in captivity.

Comprehensive rockwork and coral decors must be provided to allow the fish to pull back from other tankmates. These fish can be reproduced effectively in captivity, and the fry can be raised to the adult years with suitable care.

Range and habitat

Cardinalfishes are extremely limited in their geographical range. It is discovered only in designated areas around the coasts of 33 islands in the Banggai Island chain, an island group in Indonesia.

They are tropical marine types. It is a demersal fish, suggesting it feeds and lives on or near the bottom of the body of water. It remains in shallow waters at depths between 1.5 to 5 meters, but hardly ever much deeper than 2.5 meters and at temperature levels in between 28 to 31 degrees Celsius.

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Usually, it prefers calm waters, however, there are some that reside in areas with big currents.

Cardinalfishes are often discovered near and around coral reefs; there are some that can be discovered around seagrass beds. Residing in these environments, cardinalfishes typically connect with organisms that likewise live near the seabed, such as sea urchins, sea polyps, and branching corals.

Cardinalfish diet

They are carnivores. It consumes benth shellfishes, zoobenthos, little fish, and mobile invertebrates.

In fish tanks, it needs to be fed a well-balanced diet plan of meaty foods, such as feeder shrimps, marine flesh, bloodworms, and depending upon its size, liver feeder fish. It can not consume dry-ready foods, such as flakes and pellets.


Cardinalfishes are classified as non-monogamous sets. The female is promiscuous and is willing to mate with several males. As soon as a mated set forms, the Cardinalfishes are very easy to breed. The female generally protects the male throughout and after reproducing.

Cardinalfishes are paternal mouthbrooders, this means the male keeps the eggs. The real spawning happens usually in the mid-afternoon (in fish tanks) and the transfer of eggs just takes a couple of seconds. Spawning is extremely apparent, the male decline food and will have an extremely inflamed buccal cavity later on.

After spawning, the female will be extremely protective of the male. Cardinalfish reproduce nearly every one month, however, it has actually been seen as often as 2 weeks.


Cardinalfishes are typically considered semi-aggressive. This is because it shows territorial aggressive habits towards members of their exact same types, it needs to not be kept in big groups, although it does like to have a couple of other Cardinalfishes around for interaction

Interetsing facts about cardinalfish

Banggai Cardinalfish

  1. Cardinalfish larvae are really sensitive to increasing levels of ammonia. Using an ammonia badge is valuable in warning of an approaching ammonia spike and possible catastrophe. Using an effectively aged sponge filter and increasing the flow rate from the filter fish tank helps in relieving this issue.
  2. Start the rotifer culture a minimum of 3 to 4 weeks prior to gathering the egg mass. This guarantees a sufficient quantity of time to get your cultures producing the amount of prey organism you will need.
  3. Keeping the larval rearing tank clean is important. Siphon the particles from the bottom day-to-day and clean sponge filters as required.
  4. Feeding the parents a top-quality diet plan (like using periodic feedings of live adult saltwater shrimp, frozen Mysis shrimp, clam, and squid) will enhance their fertility and increase the variety of feasible hatching larvae.
  5. Keeping a little light on 24 hr a day will allow the larvae and young cardinalfish to find and pursue their prey all the time.
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