Parachromis dovii

Parachromis dovii

PDF | Print | E-mail

 

        
 

General  

Scientific Name or classification 

Parachromis dovii  (Günther; 1864)

 

Synonyms

Parachromis dovii, Cichlasoma dovii, Herichthys dovii, Parapetenia dovii, Nandopsis dovii, Heros dovii

Common Name

Wolf Cichlid, Guapote, Dovii Cichlid

Family

Cichlidae

Type Locality

Tempisquito, Costa Rica

Etymology

Para (from Greek para, meaning close to, next to) chromis (looking like a chromis fish - perhaps a perch dovii), dovii in honour of Captain Dow.
   

Species Information

Size (TL or SL in cm)

Male: 75 cm SL, female: 50 cm SL.

Identification

The Wolf Cichlid or Dovii Cichlid is a beautiful deep bodied muscular fish. It has a large mouth and big teeth indicating this is a veracious predator. The mature male has a rich golden yellow to silvery background colour speckled with blue, black, and purple. It has green and red on the head and the base of the dorsal fin. Its fins and tail are blue-green. The females are almost all yellow with less blue green hues. They have large eyes with a bronze iris. The juveniles are silver with a horizontal black stripe through the body.  As they grow their horizontal black stripe becomes thicker and their main colour turns to a golden yellow. Colouration may greatly vary among fish collected at different locations.

Populations of P. dovii in L. Nicaragua and the Rio Puerto Viejo on the Atlantic slope of Costa Rica include orange-red individuals, often marked with irregular black blotches on the body and fins.This is considered to be the oligomelanic form.  Pacific slope Costa Rican populations differ from Atlantic slope populations in several details of finnage and colour pattem.


Sexing

Females tend to be smaller than males but in some cases can grow just as big or bigger than spawning partners. The gold/yellow colouration is more prominent in the females, especially during courtship, breeding and raising fry. The males' dorsal and ventral fins are also much more elongated than these of the females. Males on the whole have more spots and a more prominent blue colouration. On the females the mid-lateral blotches are fused forming what appears to be a thick line. Females lack the iridescent colouration on the body and fins.

 

Habitat

Natural distribution 

Both Atlantic and Pacific slopes of Costa Rica, Atlantic slope from the Rio San Juan basin of Nicaragua, including the Great lakes northward into eastern Honduras (Miller, 1966, 1976).

pH 

7.2-8.0

Temperature 

26° - 29° C

Other parameters 

Slight to moderate alkaline, medium to hard (or even very hard) water. The dovii's natural habitat is clear water biotopes over firm bottoms in lakes or in rivers. P. dovii tends to prefer lacustrine habitats. Adults are commonly found around submerged brush piles or waterlogged tree trunks whilst juveniles collect around aquatic plants (Meral, 1973). Found to depths of 10 m in L. Jiloa, a crater lake in Nicaragua.
   

 

Husbandry  

Feeding                    

Large size pellets for cichlids, some vegetable matter, will eat almost everything offered to it.

Compatibility

Better left alone. Really aggressive when spawning, it will kill smaller tankmates. Highly territorial at all times may be provoked by anything and attack to kill. Male aggression has been observed even against the female in well established pairs.

Suggested Tankmates

None. The fish, when fully grown up may turn unexpectedly against any tankmate and kill it on the spot. Extremely large and aggressive cichlids like the Hericthys umbriferum will not give in to them but still they need an extremely large tank of 3000 L or more (4 or more meters in length).

Furniture

The aquarium should be large (1000 L+) for a breeding pair of wolf cichlids.These fish are large, aggressive and highly territorial cichlids who are not used to company. The fish do not seem to appreciate heavily decorated environments; they need a lot of swimming space. Sand or gravel is a welcomed substrate. The female will need a well protected area to hide (particularly if the male gets aggressive). Both fish will need a cave to sleep in. Slate or rock is essential for the female to lay her eggs on.

Recommended Tank Size

1000 L for a grown up pair, 750 L for a single fish, more than 3000 L for a community of large cichlids. In this case, an overall length of 4 meters or longer is highly recommended.

Behaviour in
Captivity
 

Extremely aggressive even when not protecting fry or its spawning site. When provoked it will become furious and will kill the offender. Anything could constitute provocation for a dovii, even the existance of a well established tankmate in the tank.  A cruise predator, with extremely powerful jaws and dentition and the character to match, the dovii will eradicate any tankmate it choses to. See also Living with the Parachromis Giants .

Other remarks 

Slow grower when young (compared to other Central American cichlids), the dovii will grow much faster once it becomes one year old. Ample tank space is of paramount importance for a good growth rate. Lowering the temperature nearer the 26oC helps reduce aggression. 
   

Breeding

Breeding                                                                         

Quite tricky to pair them off. The male may or may not accept the female especially if the difference in size is large. Once paired, they will spawn easily and the fry are quite easy to raise. Substrate spawner.  The male may turn and kill his female at any time.  A divider is a must for this species.

 

References

(1) Cichlidae

(2) Wolf Cichlid

 

Photos by the authors.