Water parameters
Overview
The blue corydoras is recognized by its body, which shines bluish–green under light, and a dark stripe running along its flanks; in English it is known as the "blue cory." Adults reach 5–6 cm. Unlike the Amazon species, it comes from Atlantic Forest streams in southeastern Brazil, so it prefers slightly cooler water than its tropical relatives. Temperatures constantly above 26°C do not suit it.
Tank Setup
- At least 60 liters for a group of 6–10.
- Fine, rounded sand substrate; roots and plants.
- 20–25°C; soft to moderately hard, well-oxygenated water with gentle flow.
- A 25–30% water change every week.
Diet
Sinking tablets and granules, frozen bloodworms, brine shrimp and daphnia. Sinking food given in the evening lets bottom dwellers eat in peace.
Behavior and Compatibility
A peaceful, social bottom dweller; it sifts the bottom in a group. It does not harm fish or shrimp.
Good companions: peaceful species that like cool to warm water: zebra danios, White Cloud Mountain minnows, peppered and panda corydoras, platies, Neocaridina shrimp.
Avoid: species that need warm water (discus, rams), cichlids that claim the bottom, large predatory fish.
A short profile for this species
The Blue Corydoras page has the basics, but the sections below have not been written yet. If you keep this species, write a section from your own experience; it will be published under your name after editor approval.
Tank mates
This list is calculated automatically from the species profile and grows as new species are added to the catalog. Try it in the planner for a definite answer.
Usually compatible
Flame Tetra
Blackfin Corydoras
Polystictus Corydoras
Emerald Cory
Emerald Dwarf Rasbora
Porthole Catfish
Keyhole Cichlid
Cryptocoryne Parva
European Bitterling
Adolfo's Cory
Should not be kept together
Hobbyist notes
Things you won't find in books, learned by trial and error. The most helpful ones are on top.
Change history and contributors
- Page created · October 16, 2026