Eversi Corydoras - Corydoras Eversi : Complete Fish Profile & Care Guide
Table of contents
Introduction
The Eversi Corydoras (Corydoras eversi) is a fascinating and relatively uncommon species within the aquarium hobby. These lively and uniquely patterned fish are excellent additions to nano, community, and planted aquariums. Eversi Corydoras are known for their peaceful nature and shoaling behaviour, thriving when kept in groups of at least six individuals. By maintaining a more significant number of these Corydoras, aquarists can create a more natural-looking and captivating display.
Regarding tankmates, Eversi Corydoras are compatible with a wide range of fish commonly found in the hobby. They can coexist harmoniously with Dwarf Cichlids, Tetras, small to medium-sized Barbs, Gouramis, and other peaceful Catfish. While Eversi Corydoras may prey on smaller Dwarf Shrimp, larger shrimp and other ornamental invertebrates are generally safe. It is crucial, however, to avoid housing them with larger, more aggressive fish that could intimidate them and outcompete them for food.
To create an optimal environment for Eversi Corydoras, aquarists can consider replicating an Amazon biotope setup. This can be achieved by utilizing a sandy or smooth gravel substrate, incorporating driftwood branches, and adding dried leaf litter. In their natural habitats, Eversi Corydoras do not encounter aquatic plants. Instead, allowing the wood and leaves to tint the water with a brown hue can provide a more authentic environment. Regular removal and replacement of old leaves every few weeks help prevent their decay, maintaining water quality.
Alternatively, Eversi Corydoras can thrive in a well-planted aquarium if a biotope setup is not preferred. These Corydoras are sensitive to deteriorating water conditions, making it crucial to establish a proper maintenance routine and avoid sudden changes. Regular water changes, proper feeding without overfeeding, and stable environmental conditions are key to their well-being. Fortunately, these fish are generally undemanding and relatively easy to care for.
The Eversi Corydoras boasts a rounded head and snout. Their light-coloured bodies feature distinct dark dots on the head, forming horizontal lines along the body and dorsal fin. Faint vertical lines can also be observed around the tail. These Corydoras exhibit a remarkable yellowish-orange base colour contrasting with their white bellies. The intensity of their colouration can vary depending on factors such as diet, lighting, and surrounding conditions, adding further intrigue to these captivating fish.
Eversi Corydoras Photos
Sexual Dimorphism
Differentiating between male and female Eversi Corydoras can present certain challenges. However, there are some distinguishing characteristics to observe. Generally, females tend to exhibit a slightly larger size compared to males, especially when they reach sexual maturity. Females also display a rounder and more robust body shape.
On the other hand, males typically possess a slimmer physique and are slightly smaller in size compared to females. These subtle differences in size and body shape can provide valuable clues for distinguishing between male and female Eversi Corydoras.
Quick Facts
| Scientific Name | Corydoras Eversi |
|---|---|
| Year Described | 2016 |
| Other Names | C065, Guarana Cory, Soda Pop Cory |
| Classification | Actinopterygii |
| Order | Siluriformes |
| Family | Callichthyidae |
| Genus | Corydoras |
| Origins | |
| Max Size | 5.5 cm |
| Temperament | Peaceful |
| Aquarium Level | Bottom |
| Difficulty | Beginner |
| Shoaling | Yes |
| Best kept as | Groups 6+ |
| Diet & Feeding | Omnivore |
| Reproduction | Egg Depositor |
| Lifespan | Up to 8 Years |
Water Parameters
| Water Type | Freshwater |
|---|---|
| pH | 6.0 - 7.5 |
| GH | 5 - 20 |
| ℉ | 71 - 77 |
|---|---|
| ℃ | 21 - 25 |
Natural Habitat
The Eversi Corydoras is indigenous to the Rio Araguaia in Goiás, located in Brazil, South America. These Corys are typically found in habitats characterized by clear water conditions and a sandy substrate. They prefer environments with a relatively swift water current.
Breeding
Limited information is currently available on the specific breeding techniques for the Eversi Corydoras. However, it is likely that they will exhibit similar breeding behaviours to other Corydoras species. To initiate the breeding process, it is recommended to set up a separate breeding tank with a ratio of two or more males per female.
When the females are visibly filled with eggs, it is advisable to perform a substantial water change, ranging from 50 to 70 per cent, using slightly cooler water. Additionally, increasing the oxygenation and flow within the breeding tank is crucial. This water change regimen should be repeated daily until spawning occurs. Eversi Corydoras typically deposit their eggs on the tank glass, among fine-leaved plants, or within submerged spawning mops.
Once spawning is complete, removing either the adult fish or the eggs from the breeding tank is necessary. If transferring the eggs, the rearing tank should maintain similar water parameters to the spawning tank and possess adequate oxygenation. Some breeders add a few drops of methylene blue or introduce alder cones to the rearing tank to prevent fungal development on the eggs.
The incubation period for Eversi Corydoras eggs usually ranges from 2 to 4 days. Once the fry has absorbed their yolk sacs, they can be provided with small live foods such as microworms and baby brine shrimp. Rearing Corydoras fry can be challenging, as they require excellent water quality for their development. Interestingly, maintaining them over a thin layer of sand instead of a bare tank has been shown to reduce their susceptibility to diseases.
Diet & feeding
In the domestic setting of an aquarium, the Eversi Corydoras readily accepts a wide variety of high-quality dried foods, such as granules, flakes, and sinking pellets. These meticulously formulated food products have been specifically developed to provide the essential nutrition necessary for maintaining the optimal health and dietary requirements of these fish.
While these quality dried foods are sufficient to sustain the well-being of the Eversi Corydoras, supplementing their diet with occasional servings of live, frozen, or freeze-dried meals like bloodworm, daphnia, and tubifex can offer additional advantages for their overall health and vitality. However, it is important to note that bloodworms should be provided sparingly, serving as an occasional treat rather than a staple diet, as they can pose challenges to digestion and potentially lead to blockages.
Nevertheless, for those seeking to augment their fish's diet, including blanched vegetables such as spinach, broccoli, and zucchini can serve as a beneficial nutritional supplement. It is crucial to exercise moderation during feeding to prevent overfeeding, and any uneaten food should be promptly removed the following day to maintain optimal water quality and prevent potential health issues.
