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Fish lexicon: pearl cichlid (Herichthys cyanoguttatum)


Pearl cichlid
(Herichthys cyanoguttatum)

info

The pearl cichlid (Herichthys cyanoguttatum), in English "Rio Grande cichlid" or "Texas cichlid", is a freshwater fish from the family of the cichlids (Cichlidae) and the genus Herichthys.


features

The main characteristics of the pearl cichlid:

  • the body of the pearl cichlid is perch-like: high-backed, oval and strongly flattened on the sides. Adult males get a "brow hump" (bump-like outgrowth on the forehead)
  • the basic color of its body is bluish-gray or light brown. Its entire body including head and fins are covered with shimmering, light blue to greenish dots or lines. Its body flanks have several dark transverse bands, which are difficult to see in some specimens. Several, mostly round, black spots run from the middle of the body to the base of the tail (appears like an interrupted longitudinal ligament)
  • the anal fin has bluish-green fin rays, the pelvic fins are often completely bluish-green, the pectoral fins are colorless
  • its head is large, its mouth is terminal
  • As adults, males have a forehead hump. In the females, part of the dorsal fin is often darkly colored, otherwise their coloration is not as intense as in the males and they remain somewhat smaller
  • Fin formula: D XV-XVIII / 10-12, A V / 8-9
  • Dandruff formula: mLR 27-30

size

The pearl cichlid (Herichthys cyanoguttatum) becomes a maximum of approx. 30 cm long. Its average length is about 11-12 cm.


Maximum age

Not known.


Way of life, habitat, occurrence

The distribution area of ​​the pearl cichlid (Herichthys cyanoguttatum) is northern Mexico and southern Texas (river basin of the Rio Grande).


Aquaristic info

Temperature: 20 ° C - 32 ° C
pH value: 6.5-7.5
Total hardness: 5 ° -12 °
Water region: below
Aquarium: from approx. 250 liters
Difficulty level: not suitable for beginners

Feeding:
Omnivores: live, dry and frozen food, crustaceans

Attitude:
The basin should have ample and robust planting, plenty of hiding spots (caves and roots) and stones (for spawning). This species is very aggressive (intraspecies and against other species). Pearl cichlids often rearrange the soil and thereby uproot the plants (especially at spawning time). You need oxygen-rich water, but are not sensitive to low temperatures.

Breed:
It is often difficult to find a "harmonizing" pair. By far the best way to get a matching pair is to acquire a group of 6 or more fry and let them grow up together. This is how the couples find each other by themselves.
The pearl cichlid is an open brooder and lays its eggs (up to 500) on stones, roots, in caves or hollows. The parent fish should be removed after the spawning process, as they could eat the eggs or the fish larvae after hatching.


Reproduction

(see above under "Aquaristic Info")


food

The pearl cichlid (Herichthys cyanoguttatum) feeds on crustaceans, worms, insects and plants in the wild.


Fish diseases

common diseases in cichlids (Cichlidae):

  • Infectious ascites
    The belly of the diseased fish is extremely swollen in infectious ascites, the fish shed a light, slimy feces, the anus outlet is inflamed [read more ...]
  • Mouth or fin rot (Columnaris disease)
    As one can see from the German name of this disease, milky white spots (similar to mold) form on the fins, on the edges of the scales and in the area of ​​the fish's mouth.
  • Fungal disease (mycosis)
    A fungal disease (mycosis) or fungal infection always occurs as a secondary infection. Fungal diseases are also called "fish mold" or "water mold" [read more ...]
  • Velvet disease
    If you look at the infected fish obliquely from the front and lengthways (against the light), the skin appears cloudy and as if sprinkled with powdered sugar [read more ...]
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