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Compatibility

Compatibility brief

Can Corydoras Catfish live with Discus?

Corydoras Catfish

Corydoras Catfish

Corydoras spp. (page covers the common trade group)

peaceful~6cm
Discus

Discus

Symphysodon sp.

peaceful~20cm
VerdictRISKY

Risky. This mix is commonly discouraged for typical setups.

Corydoras Catfish + Discus: Incompatible temperature requirements. Corydoras Catfish needs 20–26°C and Discus needs 28–32°C. Their ranges do not overlap. Real tanks add variables Fishori cannot model; treat this as a high-risk read, not certainty.

Compatibility score

30/100

Profile confidence: low

Order of checkstank volume vs adults → predation mouth gap → temperament / fin nipping → shared water windows.

Min tank

200L

Combined minimum footprint reference for these two species: about 200L (larger active fish often want more length).

Temperature
Range in °CNo shared window
Corydoras CatfishDiscus
pH
Range6–7 shared
Corydoras CatfishDiscusShared window

Assessment details

  1. Compatible temperaments

    Both Corydoras Catfish and Discus share a peaceful temperament.

  2. Incompatible temperature requirements

    Top issue

    Corydoras Catfish needs 20–26°C and Discus needs 28–32°C. Their ranges do not overlap.

“Corydoras Catfish needs 20–26°C and Discus needs 28–32°C”

Incompatible temperature requirements

Next steps

Concrete changes, not "research more" filler.

  • •Corydoras Catfish should be kept in a group of at least 6 for best health and behaviour.
  • •Discus should be kept in a group of at least 4 for best health and behaviour.
  • •These fish cannot be comfortably housed together. Their temperature needs are incompatible.
Sources from both profiles
Only URLs that exist on the species records are shown. We do not fabricate citations.

Try this next

Build the full stocking list with Corydoras Catfish + Discus

Compare another pairOpen tank builder

Plan further

Check each species’ mates list, size the glass, then verify the full stock in the builder. Methodology explains how verdicts are produced.

Individual fish vary in personality. Fishori uses conservative hobby rules. Observe any new introduction closely, feed thoughtfully, and keep a quarantine or backup plan. This is not veterinary advice.

Profile data confidence: high. Checked against several solid care sources that mostly agree. At least one species here has common trade-name ambiguity.

Full tank-mate guides

Related pair checks

Other tank mates for Corydoras Catfish

Corydoras Catfish + Discus — common questions

Can Corydoras Catfish live with Discus?
For most keepers, no. The verdict is RISKY: at least one check fails hard for a typical home tank. Choose a different pairing, or read the assessment details on this page to see exactly what fails before deciding.
What tank size do you need for Corydoras Catfish and Discus together?
Plan around 200 litres as the working minimum. That figure comes from each species' published minimum and their group needs, and it assumes adult sizes, not shop sizes.
What's the main risk?
Incompatible temperature requirements. That is the check that fails outright for this pair. The matching entry under assessment details on this page explains the reasoning and the numbers behind it.
What should you check before buying?
Corydoras Catfish should be kept in a group of at least 6 for best health and behaviour. Discus should be kept in a group of at least 4 for best health and behaviour.