Two-Saddle Corydoras (Corydoras weitzmani) Breeding Guide
How to breed Corydoras weitzmani: cooler-water Peruvian cory that spawns in the T-position, lays eggs in moss and Anubias, hatching in 120 hours at 24 C.
Overview
Corydoras weitzmani originates from the Vilcanota river system near Cusco in southern Peru. It is a cooler-water cory that spawns in the characteristic Corydoras style, and is considered a prized species among hobbyists. Adults have no special water-chemistry requirements.
Conditioning
Maintain adults at a temperature of 20-24 degrees C (68-75 degrees F). For developing eggs the reported water chemistry is a pH of about 7, GH about 3 and KH below 1. Condition the group well before attempting to spawn.
Spawning Behavior & Trigger
The fish assume the typical Corydoras T-position; afterwards the female swims with an egg held in her fins, looking for a place to deposit it. Eggs are usually placed in a clump of moss and only rarely on the glass; floating Anubias leaves are also used.
Egg & Fry Care
Eggs hatch in 120 hours at 24 degrees C (75 degrees F). The larvae are unusually large; three or four days after hatching, once they have absorbed their yolk, feeding begins with microworms or freshly hatched Artemia nauplii three times per day, supported by a daily water change of about one third of the tank. At two months the fry are 2 cm (three quarters of an inch) long and have attained adult coloration.