Compatibility brief
Can Corydoras Catfish live with Molly?
Caution. Check the issues below before buying.
Compatibility score
Profile confidence: low
Order of checkstank volume vs adults → predation mouth gap → temperament / fin nipping → shared water windows.
80L
Combined minimum footprint reference for these two species: about 80L (larger active fish often want more length).
Assessment details
Compatible temperaments
Both Corydoras Catfish and Molly share a peaceful temperament.
Narrow temperature overlap
Top issueCorydoras Catfish and Molly have only a narrow shared temperature range. Maintaining stable water temperature will be important.
Narrow pH overlap
These fish can share water but their ideal pH ranges overlap only slightly. Aim to keep pH stable in the shared range.
Hardness preference mismatch
Corydoras Catfish prefers soft water and Molly prefers hard water. One of them lives outside its comfort band long-term — pick the tank's water for the more sensitive species.
“Corydoras Catfish and Molly have only a narrow shared…”
Narrow temperature overlap
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.
- 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.
- Seriously Fish. Poecilia sphenops
Supports: aquarium size, water chemistry, temperament and compatibility (primary care reference).
- FishBase. Poecilia sphenops
Supports: taxonomy and wild maximum size — translate to tank stocking, not a target number.
- Wikipedia. Poecilia sphenops
Supports: general species background and common-name orientation only.
Try this next
Build the full stocking list with Corydoras Catfish + Molly
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.