Vieja argentea Breeding Guide
How to breed the Silver cichlid (Vieja argentea), a Usumacinta-basin Mexican cichlid that spawns biparentally on a large stone or in a cave.
Overview
Vieja argentea, the Silver cichlid, is endemic to the River Usumacinta drainage in western Mexico, where it inhabits areas with rocks and bogwood. It is a biparental substrate-spawner. The species has also been placed in the genus Maskaheros (as M. argenteus), though it is listed here under its record name Vieja argentea.
Sexing
The male is the larger fish and develops a nuchal hump, with extended dorsal and anal finnage. Females are smaller and plainer.
Conditioning
Primarily herbivorous in the wild, the fish accepts varied foods in captivity. Conditioning combines cichlid pellets with meaty items such as prawn, mussel and white fish, plus vegetable matter, in a stable, mature system.
Breeding Setup
- Temperature 26-30 °C (78-86 °F).
- pH around 7.0 with hardness of about 10-15 °H.
- A large stone or a cave as the spawning site, plus rockwork and bogwood for territory.
- A large tank, as the species reaches about 30 cm and is aggressive toward conspecifics.
Spawning Behavior & Trigger
Spawning occurs on a large stone or sometimes inside a cave that the pair cleans beforehand. The species is aggressive, especially toward its own kind, so a bonded pair needs adequate space and territory.
Egg & Fry Care
Eggs hatch in two to three days, with fry becoming free-swimming approximately four days thereafter. Fry initially take newly hatched brine shrimp, progressing to microworm and crushed pellets. Both parents guard the brood.
Common Challenges
Conspecific aggression and the large tank required are the main constraints. The recorded breeding type is substrate-spawner, matching the biparental stone-and-cave spawning described by the source used here.