Compatibility brief
Can Keyhole cichlid live with Neon Tetra?
Caution. Check the issues below before buying.
Keyhole cichlid + Neon Tetra: Narrow temperature overlap. Keyhole cichlid and Neon Tetra have only a narrow shared temperature range. Maintaining stable water temperature will be important. Outcomes still depend on your tank shape, maintenance routine, and individual fish.
Compatibility score
Profile confidence: medium
Order of checkstank volume vs adults → predation mouth gap → temperament / fin nipping → shared water windows.
200L
Combined minimum footprint reference for these two species: about 200L (larger active fish often want more length).
Keyhole cichlid (10cm adult) may treat small Neon Tetra (~4cm) as food once grown — plan adult sizes, not shop sizes.
Assessment details
Compatible temperaments
Both Keyhole cichlid and Neon Tetra share a peaceful temperament.
Narrow temperature overlap
Top issueKeyhole cichlid and Neon Tetra have only a narrow shared temperature range. Maintaining stable water temperature will be important.
“Keyhole cichlid and Neon Tetra have only a narrow shared…”
Narrow temperature overlap
Next steps
Concrete changes, not "research more" filler.
- •Neon Tetra should be kept in a group of at least 6 for best health and behaviour.
Try instead
- →Neon Tetra should be kept in a group of at least 6 for best health and behaviour.
- Seriously Fish. Cleithracara maronii
Primary: aquarium size, water chemistry, behaviour, and compatibility (URL verified in upgrade script; recheck if site content changes).
- FishBase. Cleithracara maronii
Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.
- Wikipedia. Cleithracara maronii
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. Paracheirodon innesi
Primary: aquarium size, water chemistry, behaviour, and compatibility (URL verified in upgrade script; recheck if site content changes).
- FishBase. Paracheirodon innesi
Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.
- Wikipedia. Paracheirodon innesi
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 Keyhole cichlid + Neon Tetra
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: high. Based on multiple reputable aquarium care sources with strong agreement.