Compatibility brief
Can Betta live with Serpae Tetra?
Risky. This mix is commonly discouraged for typical setups.
Betta + Serpae Tetra: Known incompatible pairing. Serpae tetras are habitual fin nippers in many community tanks; long-finned bettas are a very high-risk combination.
Compatibility score
Profile confidence: medium
Order of checkstank volume vs adults → predation mouth gap → temperament / fin nipping → shared water windows.
100L
Combined minimum footprint reference for these two species: about 100L (larger active fish often want more length).
Serpae Tetra is a fin nipper and Betta is vulnerable to nipping — long fins are a common target even when water parameters match.
Assessment details
Known incompatible pairing
Top issueSerpae tetras are habitual fin nippers in many community tanks; long-finned bettas are a very high-risk combination.
Compatible temperaments
Both Betta and Serpae Tetra share a semi-aggressive temperament.
Fin nipping risk
Serpae Tetra is a known fin nipper and Betta has long, flowing fins. Serpae Tetra will likely harass Betta.
Compatible temperature range
Both fish can comfortably share similar water temperatures.
“Serpae tetras are habitual fin nippers in many community…”
Known incompatible pairing
Next steps
Concrete changes, not "research more" filler.
- •Avoid keeping Serpae Tetra with long-finned fish like Betta.
- •Serpae Tetra should be kept in a group of at least 8 for best health and behaviour.
Try instead
- →Avoid keeping Serpae Tetra with long-finned fish like Betta.
- →Serpae Tetra should be kept in a group of at least 8 for best health and behaviour.
- Seriously Fish. Betta splendens
Primary: aquarium size, water chemistry, behaviour, and compatibility (URL verified in upgrade script; recheck if site content changes).
- FishBase. Betta splendens
Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.
- Wikipedia. Betta splendens
Secondary: general species context; verify all husbandry numbers against a dedicated aquarium care sheet and your test kit, not a single table row.
- Wikipedia. Betta splendens
Encyclopaedia overview; use specialist aquarium sources for your stock's real temperature/pH/footprint needs.
- Seriously Fish. Hyphessobrycon eques
Primary: aquarium size, water chemistry, behaviour, and compatibility (URL verified in upgrade script; recheck if site content changes).
- FishBase. Hyphessobrycon eques
Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.
- Wikipedia. Hyphessobrycon eques
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 Betta + Serpae 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.