Care guide, husbandry, breeding, disease, sourcing, and tankmate intelligence on Pygmy Corydoras - written by the Fast Aquatics editorial team and cross-verified against vendor records on the live marketplace.
Pygmy Corydoras at a glance
Adult size: 1 inch · Minimum tank/pond: 10 gallons · Difficulty: beginner · Diet: omnivore · Lifespan: 3-5 years.
Pygmy Corydoras (Corydoras pygmaeus) is a freshwater fish kept by aquarists for community + species-specific freshwater displays. Hardy and forgiving of typical beginner mistakes when given proper water chemistry.
Where Pygmy Corydoras comes from
Pygmy Corydoras (Corydoras pygmaeus) is native to specific tropical and subtropical freshwater systems. The captive-bred Pygmy Corydoras sold at most LFS comes from generations of farmed stock and is generally hardier and better-acclimated to tank conditions than wild-caught equivalents. Wild specimens are occasionally available for keepers chasing original-bloodline coloration or biotope-accurate stocking.
Pygmy Corydoras tank size and setup
Pygmy Corydoras requires a minimum of 10 gallons for healthy adults. The minimum is based on the species' adult size (1 inch), territorial range, and behavior pattern. Most Pygmy Corydoras sold at small juvenile size will reach full adult size within 12-24 months and the system must be sized to the adult, not the juvenile.
For a Pygmy Corydoras setup: tank sized for the adult footprint, HOB or canister filter rated 4-6x tank volume, dechlorinated water, appropriate temperature heater, and stocking-appropriate hardscape and plants.
Use dechlorinator on every water change. Test parameters weekly during cycling, biweekly once stable. Stable consistency beats sliding-scale "ideal" parameters.
What Pygmy Corydoras eats
Pygmy Corydoras is a omnivore. Eats a varied diet of pellets, frozen foods, and supplemental greens. Quality flake or pellet (Hikari, New Life Spectrum, Tetra) plus frozen mysis or bloodworms 2-3x weekly produces best color and behavior. Feed Pygmy Corydoras appropriately for its size + activity level. Overfeeding is the #1 cause of water-quality crashes in tanks of all sizes.
Pygmy Corydoras tankmates and compatibility
Pygmy Corydoras works in community tanks with peaceful species in similar size class. Adult-size matters more than purchase-size when planning stocking. Avoid mixing aggressive with passive species.
Browse care guides for tankmate-compatibility tables for Pygmy Corydoras and similar species.
Pygmy Corydoras adult size and lifespan
Pygmy Corydoras reaches 1 inch at adulthood with a captive lifespan of 3-5 years with proper care. Most freshwater species live 3-10 years; larger species (oscars, plecos, knifefish) reach 10-20+ years.
Can you breed Pygmy Corydoras?
Pygmy Corydoras can be bred in dedicated breeding tanks with appropriate setup and water-chemistry triggers. Catfish often need very specific water conditions and substrate to spawn; research the species before attempting.
Common Pygmy Corydoras diseases and problems
Pygmy Corydoras is susceptible to standard freshwater diseases (ich, columnaris, fin rot, bacterial infections). Quarantine new Pygmy Corydoras for 4 weeks before adding to your display tank. Treat fish in a separate hospital tank to avoid affecting plants and inverts. Most disease outbreaks trace back to poor water quality, chronic stress, or skipped quarantine.
Where to buy Pygmy Corydoras online
Pygmy Corydoras is sold at LFS (local fish stores), online retailers, and direct from breeders/wholesalers. Pricing varies widely by source, size, and quality:
Browse live Pygmy Corydoras from vetted Fast Aquatics vendors with carrier-tracked overnight shipping (FedEx Priority + UPS Next Day), climate-aware hold logic, and a 4-hour DOA window with photo-evidence claims. Captive-bred or aquacultured specimens cost more upfront but arrive healthier and integrate faster.
Pygmy Corydoras FAQ
How big does Pygmy Corydoras get?
1 inch at adulthood within 12-24 months.
How long does Pygmy Corydoras live?
3-5 years with proper care.
What is the minimum tank/pond size?
10 gallons, with larger systems strongly recommended.
Is Pygmy Corydoras hard to keep?
Pygmy Corydoras is rated beginner difficulty.
What does Pygmy Corydoras eat?
Pygmy Corydoras is a omnivore; appropriate diet matches its natural feeding pattern.
Pygmy Corydoras taxonomy and care recommendations cross-checked against the following authoritative references and our internal vendor + breeder database.