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Genus, Cichlasoma Swainson, – American cichlids. Species, Cichlasoma istlanum (Jordan and Snyder, ) – mojarra del Balsas, redside cichlid. Cichlasoma istlanum is a species of ray-finned fishes with 5 observations. I just picked up 4 Red Istlanum last week. 3 of them from COA and 1 male from Rapps. The ones from COA are Gmfishnuts original strain and.

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Registration is FREE and very easy! Yellow on the head, as well as the blue iridescent spots on the scales and fins, also intensifies on both sexes. The eggs hatch after two days under aquarium conditions and small wrigglers are placed in the bottom of the cave where they remain until they become free swimming after five days in aquarium.

Human uses

The sexes can be distinguished easily by the different coloration. During the rainy season Balsas rivers have a strong reddish brown color with no more visibility than perhaps 1 mm, indicating the high contents of fine clay being washed away. I ckchlasoma this species FWP and they are on the C. Plant life is found in some rivers in the form of large weeds that the fish use for cover Rio Amacuzacbut mostly no aquatic plants are found in the main courses of cichlasom rivers where istlanum lives.

A minnow, Algansea aphanea, is also found in rivers Coahuayana and Armeria and the redhorse sucker Moxostoma austrinum in Rio Armeria. When you register, you’ll have instant access to It is true that the cichlid is hard to collect but I also found out talking with the people that live in the river course that mojarras cannot be encountered.

It’s cichpasoma easy for most people or other “regular” istlanu, keepers to understand why we maintain this type of collection and spare no expense on this fascinating hobby.


The bigger danger this beautiful cichlid faces is as usual of human origin; introduction of exotic species, both for food or amusing purposes plus cichlwsoma careless pouring of wastes in the river courses, are some acts that pose a risk to all freshwater fish populations in the world. A ‘Cichlasoma’ istlanum pair changing turns in the care of the spawn, Papagayo River, Mezcala, Balsas.

Balsas Cichlid (Cichlasoma istlanum) ·

Sent from my iPhone using MonsterAquariaNetwork app. Our specimens are German bred. This splendid species is endemic in the Rio Balsas system in Mexico. I have observed lucky parents with herds of more than one thousand 2 cm fry, strolling proudly with their babies in the shallows of the river.

This fact limits the istlanum habitat to a fraction of it’s potential range, as Balsas tributaries courses are found in a good part above this altitudes. Freshwater Fishes of Mexico. The overall shape of the fish is elongated with a compressed body, cichlaspma slightly isltanum profile with a concavity above the eye and a slightly exposed almost straight pre-maxillar pedicel.

Retrieved on December 31,from: Nevertheless, the absence of natural geographical accidents like waterfalls in ccichlasoma lower rivers leaves a very large uninterrupted range for Istlanum, much larger than the majority of the ranges known for Central American cichlids.

I hope i can grab a few females from Gatling as his are a mix of Gani’s strain and Gmfishnuts, that way i can combine all 3 into one clean pair Here up are some pics and a video of my large male and female from COA. Basic color base is yellowish, lighter in the lower half of the body and much darker to brown in the upper one, the lower part also with a lot of red.

The course of the Balsas mostly consist of rivers of moderate fast to very fast water flows, running on terrains that are rocky but also muddy in bottom composition.


The head of the fish is dark green in the dorsal area and yellow with an intense green hue in the ventral one. No, create an account now.

In breeding individuals the red of the lower half of the flanks becomes very intense as well as the dark in the upper part, becoming in males velvety black up to about five black blotches that form a line in the upper part of the flanks and are just clearly visible in dominant individuals.

In this situation they look like a peaceful fish. The range of ‘Cichlasoma’ istlanum is not restricted to the Balsas river system, but it also extends to smaller systems west to Sierra Coloma at N. We want to answer your questions, offer advice and fill the galleries with pictures of the fish we have all grown to love.

The species is sexually active already at a length of cm. Articles for sale Beautifully formatted and wonderfully illustrated PDF articles about all matters relative to cichlids. I used to a have islantum but she was a freak, started to rock the boat lol. Your name or email address: In this genus the fish remained until the big Cichlasoma mess started in once the Swedish ichthyologist Sven Kullander restricted the genus to some South American representatives closely related to the type species, Cichlasoma bimaculatum Kullander, I had a few hundred from wrigglers in a 40 long by themselves and they tore each other up.

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