Zygatus Cory

Geographic Origin and Biotope: Large part of northern South America: Colombia, Ecuador and Peru. Prefers open waters in oxbow lakes, rivers and tributaries with a sandy bed surrounded by the forest.

Taxonomy and Morphology: Black Band Corydoras (Corydoras zygatus). Aesthetically identical to Corydoras rabauti, it has a thick black lateral band, but with a more faded and pale base coloration.

Social Behavior: An ideal tank mate: mild, calm and happy in schools of at least 6 of its kind. If introduced in few specimens it tends to become sad (immobility on the ground for hours).

Coloration and Sexual Dimorphism: On the pinkish-gray or copper background stands out a massive upper black stripe, similar to C. rabauti. Females are noticeably expanded on the abdomen once mature, giving the idea of armored "balloons".

Aquarium Setup: Does not differ from the basics for corys: fine non-siliceous sand (or ultra-flat gravel). Offer lots of intertwined wood under which the group can camp out without suffering the luminous intensity of LEDs.

Diet and Feeding: Explores the sand by swallowing it and expelling it from the gills to sift out small invertebrates. High quality commercial wafer feeds mixed with gruel or freeze-dried prey.

Water Quality: Solid and extremely adaptable fish, tolerant to a wide spectrum of pH and GH. Very demanding only in the organic purity of the water.

Compatibility and Tankmates: Absolutely neutral and peaceful with all inhabitants compatible with Amazonian community tanks. Can cause panic in tiny fish due to its bulk if it moves quickly.

Aquarium Reproduction: Occurs after osmotic and thermal shocks (large cold changes). Females and males move in unison in rituals. Remove eggs immediately to prevent parental predation.

Risks and Diseases: Generalized or mycotic bacteriosis in the presence of absent hygiene or osmotic stress during incorrect introductions. Tends to hit the glass fiercely if terrified.