convict profile entry

Get $100 (max $150) for your Cichlid Fish Profile or Article! Members vote for Winner!

convict profile entry

Postby stilllearnin on Sat Apr 12, 2008 1:22 pm

Current Valid Scientific Name : Amatitlania nigrofasciata
Former Scientific names: Amatitlania nigrofasciatus,Cryptoheros nigrofasciatus ,Archocentrus nigrofaciatus,Cichlasoma nigrofasciatum , Heros nigrofasciatus

Common Names : Convict,Convict Cichlid,Con ,black convict , blue convict,white convict, pink convict, gold convict, Zebra cichlid
Family : Cichlidae (Cichlids),
Order : Perciformes (perch-likes)
Class : Actinopterygii (ray-finned fishes)

Origin : Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua and Panama *see end*
(introduced into part of Mexico,Hawaii ,Florida , Australia and possiably other warm climates)
haven't see Australia on any official list but have been told it is introduced there by people on various forums

Size : Average is 4 to 5 inches, with 8 inches recorded as rare but possable


Tank Size : The generally minium reccomended size tank for a pair of convicts is a 30 gallon. (U.S. size).Although many people keep them without problems in smaller tanks. The avarage reccomendation of 30 gallons is based on their drive for terratory and minimizeing losses should a pair fight,which is not uncommon.

Tank Setup : Convicts like most new world cichlids like to dig and move things in their environment,until they decide it's how they want it.If you keep your tanks "just so" these fish and you may clash often!
Convicts also prefer "cave spawning" so clay pots , sections of PVC or something along those lines that will allow your convicts to spawn "in a cave" will be used and appreciated by convicts.


Temperament : Convicts may be one of the most aggressive readily available small cichlids in the hobby.Other hobbysist have talked on my forums about their convicts attacking tanks mates two or three times their size especially when protecting a spawning site or fry. (which is why pairs are best kept alone)

Compatibility : Compatibilty of convicts depends on things other then convicts themselves. Tanksize,suitable spawning sites and the temperment of indivdual fish all play a role in how people view them as being compatiable or not.
Generally pairs of convicts are best kept alone. In large enough tanks fish relatively peacefully but hardy enough to take a nip now and them make great tank mates.
Tankmates of different general shapes often help minimize problems as well.

Water parameters: Don't matter much at all with convicts.They will adjust easier to your water then they will to ph or hardness fluctuations. Just make sure their water is clean and maintains a constant temperature between 70 and 82 f (20-28C). Yes thats a pretty wide temperature range but in the wild convicts are found in waters from the mid 60's to the upper 90's.

Morphs :Convicts come in 3 main color morphs: (normal) blue with black strips, "albino"/pink/gold (light colored stripeless), and marbled or calico versions of both.


Normal/blue/wild type convict - female (see below for sexing info)
Wild fish collected from Rio Monga Honduras.
Image

Pink or Gold (these are a tank raised morph)
Image

Marbled or calico version of the gold/pink forum
Image


Geographic variants : At this time I don't think anyone know all of the geographic variants of convicts.The main differences seen in them are the shades of the body color and different colored finnage.
Some examples would be -
Cons from Boca del Toro,Panama have a light colored body with out much variation between the find and body.
Convicts from Rio Monga , Honduras are bright blue with a few shades of blue in the body and bright blue fins.
Convicts from Rio Chuloteca Honduras have a light body color with bright orange fins

Sexual Dimorphism :Females are generally the easiest to see by eye. Female convicts have the orangeish colored belly.
Males lack the colored belly found in females and overall males are usually larger and more aggressive. Males also have more tendancy to develope a nuchal hump once they reach aulthood.

Wild rio monga convict group - note even on the stressed reciently imported group the orange belly still points out the females
Image



Breeding : Probally the best cichlid for anyone that wants to try breeding cichlids.Since they're one of the easiest cichlids to spawn. Convicts don't need special conditions or altered water parameters. Clean water,some food and a consistant temperature is all they need. They will even spawn often on the sides or bottom glass of a bare aquarium.
You don’t have to do any special or provide perfect conditions to breed convicts. Again I recommend keeping breeding pairs in a separate tank. The females will usually lay there eggs in the clay pot or whatever cave like object you provide them. Then in 3 or 4 days you have wigglers.Another few days you'll have tiny free swimminng convict fry. Convicts are usually great parents and will care for their fry for a few weeks.Keep in mind though if the pair decideds to spawn again the orginal fry may be looked at as a threat to the new spawn and be eaten.

Pair of convicts with their fry in a flower pot
Image

Female con guarding fry as they leave their pipe
Image

Feeding :In the wild convicts are true omnivores,meaning they eat almost anything from small fish and crustations to worms,bugs and some plant matter. So in captiviity they should be offered a wide range of food to give them a balanced diet. The will eat most of the readily bought fishfoods offered in stores from flakes and approprite sized pellets to frozen and freeze dried foods like bloodworms,daphnia,small krill and brineshrimp.


Overwiew : Convicts are a great “starter” cichlid due to their small size (in comparison) and the fact that they are hardy and can tolerate a lot of the mistakes a new keeper or aspiring breeder will make. They're also readily available if a problem arises and one needs replaced. The only downfall is that since they are so readily available a new breeder may soon find themselves overrun with convicts with no easy way to get rid of them.
This is the reason many larger scale cichlid breeder breed convicts for feeder fish.(and they're better for other cichlids to eat then feeder goldfish)




Recient studies have declaired there are other cichlids closely related and similar looking to convicts that are infact different species.(this may have changed the range "convicts" actually come from)

The following quote is taken from fishbase.org
Dorsal spines (total): 17 - 19; Dorsal soft rays (total): 7 - 9; Anal spines: 8 – 10; Anal soft rays: 6 – 7; Vertebrae: 27 – 28. This species is distinguished by the following characters: two (vs. one) distal rows of interradial scales on anal fin; arms in the first epibranchial bone are parallel (vs. divergent); posterior end of dentigerous arm of dentary rounded or squarish (vs. triple-spined or bluntly pointed); peritoneal coloration is uniformly dark (vs. not uniformly dark); rostrad directed pronounced convexity on the ventral process of the articular absent (vs. present); body less deep than as compared with its congeners kanna and siquia; 4th bar not Y-shaped



All pictures used here, taken from cjexotics.com's photo gallery used with permssion,of course :toothy12:
(cjexotics.com is my site and those are my pictures)
User avatar
stilllearnin
Administrator
Administrator
 
Posts: 2623
Joined: Fri Aug 16, 2002 2:00 am
Location: moved south

Re: convict profile entry

Postby Shootingstar on Thu Nov 05, 2015 3:11 am

Another site that allows many readers.
Shootingstar
Egghead
Egghead
 
Posts: 2
Joined: Thu Nov 05, 2015 3:10 am

Re: convict profile entry

Postby Shootingstar on Thu Nov 05, 2015 3:11 am

In the Internet to do this.
Shootingstar
Egghead
Egghead
 
Posts: 2
Joined: Thu Nov 05, 2015 3:10 am

Re: convict profile entry

Postby Gontorly on Mon May 16, 2016 11:35 pm

You are interested in the same to me.
Gontorly
Egghead
Egghead
 
Posts: 2
Joined: Mon May 16, 2016 10:49 pm


Return to Cichlid Fish Article Contest!


Who is online

Users browsing this forum: No registered users and 0 guests