Pygmy Corydoras Starter Care Guide
A practical introduction to pygmy corydoras care, including health risks, water quality, tank setup, food and behaviour.
Use this guide to notice and organize information. Contact a qualified veterinarian for medical concerns or urgent change.
About the Pygmy Corydoras
Pygmy corydoras are tiny armoured catfish that forage on the bottom and also spend more time swimming in midwater than many larger cory species. They are highly social and need a good-sized same-species group.
They occasionally dash to the surface for air, which is normal when brief and not paired with other signs of distress.
Health risks to know about
Common concerns include starvation, barbel injury, poor water quality, parasites, bacterial disease and stress from small groups or boisterous tank mates.
Repeated gasping, red skin, damaged barbels, a hollow belly, swelling or isolation from the group needs prompt investigation.
Tank, water and equipment
Use a mature, fully cycled, heated and filtered aquarium with smooth sand or fine rounded substrate, plant cover, open foraging space and gentle flow.
Keep the bottom clean without stripping the filter bacteria, and protect these tiny fish from filter intakes.
Food and feeding
Offer complete tiny sinking foods with suitable frozen or live foods for variety. They cannot live on scraps from other fish.
Feed in several places and confirm food is small enough for them to eat.
Behaviour, tank mates and enrichment
Group foraging, hovering in midwater, resting together and quick surface trips are normal.
Choose small, peaceful tank mates that will not outcompete or swallow them.
When to contact an aquatic veterinarian
Get help for gasping, collapse, severe wounds, major swelling, inability to stay upright, rapid unexplained deaths or a problem that continues after water parameters are corrected.
Test ammonia, nitrite, nitrate, pH, temperature whenever behaviour changes. Water quality is part of the medical history, so record results before contacting an aquatic veterinarian.
Read the supporting material
These sources stay with their original publishers. WiseTails links to them and provides its own summary; it does not republish their text or images.
Supports the species-specific care summary for Pygmy Corydoras.
Original source ↗02professional org · Ornamental Aquatic Trade AssociationHow to Test Water Quality in a Freshwater Tank / AquariumSupports the aquarium cycling and water-quality context used in this guide.
Original source ↗