Compatibility brief
Can Angelfish live with Columbian Tetra?
Caution. Check the issues below before buying.
Angelfish + Columbian Tetra: Temperament difference. Angelfish is semi-aggressive, while Columbian Tetra is peaceful. This can work with adequate space and hiding spots, but monitor for bullying. Outcomes still depend on your tank shape, maintenance routine, and individual fish.
Compatibility score
Profile confidence: low
Order of checkstank volume vs adults → predation mouth gap → temperament / fin nipping → shared water windows.
150L
Combined minimum footprint reference for these two species: about 150L (larger active fish often want more length).
Angelfish (20cm adult) may treat small Columbian Tetra (~5cm) as food once grown — plan adult sizes, not shop sizes.
Columbian Tetra is a fin nipper and Angelfish is vulnerable to nipping — long fins are a common target even when water parameters match.
Assessment details
Temperament difference
Top issueAngelfish is semi-aggressive, while Columbian Tetra is peaceful. This can work with adequate space and hiding spots, but monitor for bullying.
Fin nipping risk
Columbian Tetra is a known fin nipper and Angelfish has long, flowing fins. Columbian Tetra will likely harass Angelfish.
Compatible temperature range
Both fish can comfortably share similar water temperatures.
“Angelfish is semi-aggressive, while Columbian Tetra is peaceful”
Temperament difference
Next steps
Concrete changes, not "research more" filler.
- •Provide plenty of hiding spots and visual breaks so Columbian Tetra can escape if harassed.
- •Avoid keeping Columbian Tetra with long-finned fish like Angelfish.
- •Columbian Tetra should be kept in a group of at least 8 for best health and behaviour.
Try instead
- →Provide plenty of hiding spots and visual breaks so Columbian Tetra can escape if harassed.
- →Avoid keeping Columbian Tetra with long-finned fish like Angelfish.
- →Columbian Tetra should be kept in a group of at least 8 for best health and behaviour.
- Seriously Fish. Pterophyllum scalare
Primary: aquarium size, water chemistry, behaviour, and compatibility (URL verified in upgrade script; recheck if site content changes).
- FishBase. Pterophyllum scalare
Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.
- Wikipedia. Pterophyllum scalare
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. Hyphessobrycon columbianus
Primary: species page covering Colombian range, water chemistry preferences, and the documented fin-nipping under-stocking issue.
- Practical Fishkeeping. Columbian Tetra Profile
Secondary: editor coverage of the species' robust size, schooling needs, and the betta-incompatibility warning.
Try this next
Build the full stocking list with Angelfish + Columbian 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 (Columbian Tetra): Based on typical aquarium care sources; details may vary between setups.