Max Size: up to 5 cm

Agassizs Corydoras (Corydoras agassizii)

The Agassiz's Corydoras is a peaceful and sociable fish that would make an excellent member of a community aquarium with other harmonious species or in a species only aquarium. However, this fish's sensitivity to water conditions makes them unsuitable for the beginner aquarist.

In the wild, these fish shoal together, so ideally, it would be best to keep them in a group of at least six individuals; otherwise, they may become easily stressed, withdrawn, and more susceptible to illness.

Ideal tankmates for Agassiz's Corydoras could include Tetras, Pencilfish, Dwarf Cichlids such as Apistogrammas, Rasboras, smaller Barbs and Otocinclus. You can also house these fish with aquarium snails and Shrimp. However, you should not house them with aggressive fish, as they may get harmed by the Cory's venomous spines if they try to attack them.

Ideally, it would be best to use fine sand as a substrate in your aquarium, although smooth gravel can also be used, as long as you clean it regularly. Aquarium decor is not necessary; however, you should provide some cover using driftwood, bogwood, rocks or tall or floating aquatic plants, so these fish have some security if needed. It would also benefit your fish if you added some dried leaf litter.

The Agassiz's Corydoras have a silvery body with a goldish tone along their lateral line. The first three dorsal-fin rays are black, while the rest are clear to whitish. In addition, their ventral and pelvic fins are transparent; however, some individuals can have a yellowish hue, and their caudal fin can be translucent to bluish-white with three to five rows of transverse dark spots.

Agassizs Corydoras (Corydoras agassizii) Video

Agassiz's Corydoras (Corydoras agassizii) - Rare Corydoras Fish Profile & Care Guide


Agassiz's Corydoras
Agassiz's Corydoras
Agassiz's Corydoras
Agassiz's Corydoras
Agassiz's Corydoras
Agassiz's Corydoras
Agassiz's Corydoras
Agassiz's Corydoras
Quick Facts
Scientific NameCorydoras agassizii
Year Described1876
Other NamesSpotted Cory
OriginsBrazil, Peru
Aquarium LevelBottom
Best kept asGroups 6+
Lifespan3 - 5 years
Water Parameters
Water TypeFreshwater
PH6.0 - 8.0
GH2 - 25
TDS36 - 215
71 - 80℉
21.7 - 26.7℃

Natural Habitat

Nanay River


In the home aquarium, the Agassizs Corydoras will readily accept most good quality dried foods such as granules, flakes and sinking pellets. These modern food products have been developed to provide all adequate nutrition to maintain your fish's health and dietary requirements.

Providing additional foodstuffs such as live, frozen, and freeze-dried meals such as bloodworm, daphnia, and tubifex once or twice a week will provide additional benefits to your fish's health and well-being but is not a must for this fish.

It should be noted that bloodworms should only be given as an occasional treat and should not be used as the staple diet as they are difficult for fish to digest and can potentially cause blockages.

This fish is an omnivore in the wild, meaning it will consume some vegetable matter. Although most modern fish foods take this into account and include them in their products, you can still supplement your fish's diet with blanched vegetables such as spinach, broccoli, and zucchini. Ensure you do not overfeed your fish and remove any leftovers the following day.

Tank Mates

6 interesting tank mate ideas for the Agassizs Corydoras could include:

Coral Red Pencilfish(Nannostomus mortenthaleri)
Desana Corydoras(Corydoras desana)
Flash Plecostomus(Panaqolus albivermis)
Hockeystick Pencilfish(Nannostomus eques)
Picta Swamp Guppy(Micropoecilia picta)
Tiger Otocinclus(Otocinclus cocama)

Sexual Dimorphism

It can be somewhat challenging to differentiate between the male and female Agassiz's Corydoras. Females are larger and fuller-bodied when viewed from above, especially when gravid. In contrast, males are slightly smaller and slimmer than females.

Other Corydoras of interest

Adolfos Catfish(Corydoras adolfoi)
Albino Corydoras(Corydoras aeneus)
Araguaia Corydoras(Corydoras araguaiaensis)
Armatus Corydoras(Corydoras armatus)
Axelrods Corydoras(Corydoras axelrodi)
Banded Corydoras(Scleromystax barbatus)
View all Corydoras
Date Added: 26/04/2022 17:38:42 - Updated: 27/04/2022 19:08:25