Max Size: 6cm

Delphax Corydoras (Corydoras Delphax)

The Delphax Corydoras is a peaceful, timid and sociable species and is ideal for the mature community aquarium. Please keep these fish in groups of five or more due to their shoaling nature.

These are incredibly curious little fish, and it is quite captivating to watch them winking back at you through the aquarium glass.

The Corydoras has a flat-bellied body with an arched back ahead of the dorsal fin. They have a flesh-coloured body and running vertically over its head is a grey band which ends below each eye. There is a further, grey band starting behind the gill plates and extending up the frontal half of the dorsal fin. The body displays dark grey dots from behind the gill plates to the tip of the caudal fin. The spots fade out towards the belly of the fish. The remaining fins are generally transparent.

The Delphax Cory is defined by having an outspread, grey snout and comparatively long barbels which will be exposed to potential damage on sharp or abrasive surfaces, making them susceptible to infection.


Delphax corydoras
Delphax corydoras
Quick Facts
Scientific NameCorydoras Delphax
Other NamesFalse Blochi Corydoras
OriginsArgentina, Colombia, Peru, Trinidad and Tobago
Aquarium LevelBottom
DifficultyBeginner - Intermediate
Best kept asGroups 5+
Lifespanup to 15 years
Water Parameters
Water TypeFreshwater
PH5.5 - 7.5
GH2 - 12
TDS36 - 215
71 - 80℉
21.7 - 26.7℃

Natural Habitat

Inirida River
Rio de la Plata


In the home aquarium, the Delphax 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

1 interesting tank mate ideas for the Delphax Corydoras could include:

Ivantsoffs Blue Eye Rainbowfish(Pseudomugil ivantsoffi)

Sexual Dimorphism

It is relatively easy to distinguish the sex of adult Delphax Corys because the adult female is often larger, broader and fuller-bodied when viewed from above, especially when gravid. In contrast, males are slimmer and are more distinctly coloured than females.

Other Corydoras of interest

Adolfos Catfish(Corydoras adolfoi)
Agassizs Corydoras(Corydoras agassizii)
Albino Corydoras(Corydoras aeneus)
Araguaia Corydoras(Corydoras araguaiaensis)
Armatus Corydoras(Corydoras armatus)
Axelrods Corydoras(Corydoras axelrodi)
View all Corydoras
Date Added: 18/11/2020 - Updated: 18/11/2021 19:34:22