Mogurnda mogurnda (Richardson 1844)

Mogurnda mogurnda is a territorial species. In the biotope aquarium, it should not be kept with very delicate or long-finned species, as it can be quite boisterous and start to nip other fish’s fins. However, it can be paired with fast-moving species, like Melanotaenia.

When breeding the genital papillae of the males appear clearly pointed. Moreover, adult male fish tend to be smaller than females.

Young fish feed mostly on microcrustaceans, while adult specimens prey upon insects, crustaceans, worms, mollusks, fishes and plant materials.

The biotope aquarium for Mogurnda mogurnda should contain plenty of potential hiding places, for this is a shy species. One can add a sand substrate with rocks and bogwood for cover; plants can be added, as well. Furthermore, the tank should be only dimly lighted; thus, the fish will be out and about more. These fish do not do well in strong flows and, therefore, water movement should be kept to a minimum.

This fish will accept most foods. However, a varied diet that includes both frozen and live foods will keep the fish in the best condition.

This species spawns in the rainy season, from November to March. It is best to move the spawning pair to another tank. The eggs are laid on the substrate, on any other flat surface, rocks or logs. Afterwards, the female is chased away by the male, the one who guards and fans the eggs during the hatching period, which can take between 8 and 10 days. The fry should also be separated from bigger specimens who can display a predating behaviour.

Fry require infusoria type food for the first few days; afterwards, they can be given brine shrimp nauplii.