 Basics | |
|---|---|
| Overview | The first spawn was on Monday 20th of September 2010. The breeding group consisted of 3 males and 2 females. The smallest male was at least 28mm SL and the smallest female was at least 30mm SL. The individuals were obtained from Wild import. |
| Feeding | No foods recorded |
| Water Parameters (at time of spawning) | |
| pH | 7.00 to 7.40 |
| Conductivity | 200µs to 200µs |
| Temperature | 23.0°C to 24.0°C |
| Current | Medium |
| Other Water Params | Mains water is low in KH so a small amount of buffer is added to maintain a reading of KH3. |
| Aquarium | |
| Dimensions | The aquarium dimensions were 381mm x 292mm x 191mm (15" x 11.5" x 7.5") all Length x Width x Height. |
| Furniture | Substrate = very fins smooth grained sand. 2 floating polyester spawning mops(100 strand)(green). 2 small potted Anubias coffeefolia. |
| Filtration | 50 mm thick x 100mm x 100mm 30ppm air driven sponge filter (Medium flow). |
| Lighting | 2 twin t5 power glow set in center of fish house apex roof. |
| Heating | 2kw thermostatically controlled fan heater, set to maintain central bank of tanks at 23ºC. |
| Breeding | |
| Behaviour | The first spawning occurred the day following a normal weekly water change, using water of the same temperature. All five fish took part in typical Corydoras "T" mating clinch fashion. Each female laying only six eggs each, these were deposited in the Java moss and in the front corners of the tank. Once the spawning activity had finished the adult fish were moved to another tank. The eggs were not given any anti fungal treatment. Over the next three months the fish continued spawning every three or four days, producing between six and ten eggs each time. Because of the lack of available tank room the adult fish were left with the eggs, there were no signs of the adults attempting to eat the eggs or molest the emerging fry. Their activity being very similar to that of two other dwarf species, Corydoras pygmaeus and Corydoras hastatus who can also be safely left with eggs and fry. |
| Eggs | There were 12 very light tan eggs laid which were 1.0mm in diameter. |
| Time to hatch | 4 days Number: 12 Free swimming: 2 days |
| Segregation | Adults were left with eggs and emerging fry. No predation was observed. |
| Fry sizes | 7 days: 5mm 14 days: 0mm 21 days: 0mm |
| Juvenile sizes | 1 month: 7mm 3 months: 20mm 6 months: 24mm |
| Fry and juvenile feeding | First food given was micro worm, followed by alternate feedings of newly hatched brine shrimp. after the first week crushed Tetra Tabimin was added. |
