Compatibility brief
Can Clown Killifish live with Corydoras Catfish?
Often a workable match in a suitable, well-run tank. Still verify behaviour in your setup.
In many setups, Clown Killifish and Corydoras Catfish are often kept together in a suitable peaceful community when temperature and pH are matched and the tank is sized for adults. Individual behaviour, filtration, and layout still decide whether it works in your home.
Compatibility score
Profile confidence: medium
Order of checkstank volume vs adults → predation mouth gap → temperament / fin nipping → shared water windows.
60L
Combined minimum footprint reference for these two species: about 60L (larger active fish often want more length).
Assessment details
Compatible temperaments
Both Clown Killifish and Corydoras Catfish share a peaceful temperament.
Compatible temperature range
Both fish can comfortably share similar water temperatures.
Next steps
Concrete changes, not "research more" filler.
- •Clown Killifish should be kept in a group of at least 6 for best health and behaviour.
- •Corydoras Catfish should be kept in a group of at least 6 for best health and behaviour.
Try instead
- →Clown Killifish should be kept in a group of at least 6 for best health and behaviour.
- →Corydoras Catfish should be kept in a group of at least 6 for best health and behaviour.
- Seriously Fish. Epiplatys annulatus
Primary: species page covering West African blackwater origin, soft water needs, and the rocket-like swim pattern.
- Practical Fishkeeping. Clown Killifish Profile
Secondary: editor write-up on tank-bred lines, feeding strategy (micro-pellets, BBS), and shrimp-tank compatibility.
- Seriously Fish. Corydoras paleatus
Primary: aquarium size, water chemistry, behaviour, and compatibility (URL verified in upgrade script; recheck if site content changes).
- FishBase. Corydoras paleatus
Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.
- Wikipedia. Corydoras paleatus
Secondary: general species context; verify all husbandry numbers against a dedicated aquarium care sheet and your test kit, not a single table row.
Try this next
Build the full stocking list with Clown Killifish + Corydoras Catfish
Plan further
Try both species in the full-stock tank check, or open either fish profile for mates lists. 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: medium. Driven by the lower-confidence profile (Clown Killifish): Based on typical aquarium care sources; details may vary between setups.

