Compatibility brief
Can Angelfish live with Rainbow / red-tailed black shark?
Caution. Check the issues below before buying.
Compatibility score
Profile confidence: medium
How we decideFishori checks adult size and predation risk, behaviour, water requirements and tank needs before giving a verdict.
200L
Combined minimum footprint reference for these two species: about 200L (larger active fish often want more length).
Rainbow / red-tailed black shark is a fin nipper and Angelfish is vulnerable to nipping — long fins are a common target even when water parameters match.
Assessment details
Compatible temperaments
Both Angelfish and Rainbow / red-tailed black shark share a semi-aggressive temperament.
Fin nipping risk
Top issueRainbow / red-tailed black shark is a known fin nipper and Angelfish has long, flowing fins. Rainbow / red-tailed black shark will likely harass Angelfish.
Compatible temperature range
Both fish can comfortably share similar water temperatures.
“Rainbow / red-tailed black shark is a known fin nipper and…”
Fin nipping risk
Next steps
Concrete changes, not "research more" filler.
- •Avoid keeping Rainbow / red-tailed black shark with long-finned fish like Angelfish.
- 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. Epalzeorhynchos frenatum
Primary: aquarium size, water chemistry, behaviour, and compatibility (URL verified in upgrade script; recheck if site content changes).
- FishBase. Epalzeorhynchos frenatum
Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.
- Wikipedia. Epalzeorhynchos frenatum
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 Angelfish + Rainbow / red-tailed black shark
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.