Compatibility brief
Can Golden Wonder Killifish live with Neon Tetra?
Risky. This mix is commonly discouraged for typical setups.
Golden Wonder Killifish + Neon Tetra: Known incompatible pairing. Adult golden wonders reach 10 cm and treat 4 cm tetras as prey. The neon school disappears over a few weeks, often at night. Not a viable community pairing.
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).
Golden Wonder Killifish (10cm adult) may treat small Neon Tetra (~4cm) as food once grown — plan adult sizes, not shop sizes.
Temperament gap (semi-aggressive vs peaceful) — can work with space, structure, and careful observation, but not a “drop and forget” mix.
Assessment details
Known incompatible pairing
Top issueAdult golden wonders reach 10 cm and treat 4 cm tetras as prey. The neon school disappears over a few weeks, often at night. Not a viable community pairing.
Temperament difference
Golden Wonder Killifish is semi-aggressive, while Neon Tetra is peaceful. This can work with adequate space and hiding spots, but monitor for bullying.
Compatible temperature range
Both fish can comfortably share similar water temperatures.
“Adult golden wonders reach 10 cm and treat 4 cm tetras as prey”
Known incompatible pairing
Next steps
Concrete changes, not "research more" filler.
- •Provide plenty of hiding spots and visual breaks so Neon Tetra can escape if harassed.
- •Neon Tetra should be kept in a group of at least 6 for best health and behaviour.
Try instead
- →Provide plenty of hiding spots and visual breaks so Neon Tetra can escape if harassed.
- →Neon Tetra should be kept in a group of at least 6 for best health and behaviour.
- →Build a species-only tank for the larger fish, or restock with fish too large to be eaten at adult sizes.
- Seriously Fish. Aplocheilus lineatus
Primary: species page covering Indian/Sri Lankan range, predatory behaviour, jumping risk, and surface-dwelling habit.
- Aquarium Co-Op. Golden Wonder Killifish Care
Secondary: retailer care page on stocking (top-dweller-only setups, jumping lid requirement, live feed).
- 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 Golden Wonder Killifish + 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: medium. Driven by the lower-confidence profile (Golden Wonder Killifish): Based on typical aquarium care sources; details may vary between setups.