Compatibility brief
Can Angelfish live with Cockatoo / crested Apistogramma?
Caution. Check the issues below before buying.
Angelfish + Cockatoo / crested Apistogramma: Fin nipping risk. Cockatoo / crested Apistogramma is a known fin nipper and Angelfish has long, flowing fins. Cockatoo / crested Apistogramma will likely harass Angelfish.
Compatibility score
Profile confidence: medium
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 Cockatoo / crested Apistogramma (~7cm) as food once grown — plan adult sizes, not shop sizes.
Cockatoo / crested Apistogramma 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 Cockatoo / crested Apistogramma share a semi-aggressive temperament.
Fin nipping risk
Top issueCockatoo / crested Apistogramma is a known fin nipper and Angelfish has long, flowing fins. Cockatoo / crested Apistogramma will likely harass Angelfish.
Compatible temperature range
Both fish can comfortably share similar water temperatures.
“Cockatoo / crested Apistogramma is a known fin nipper and…”
Fin nipping risk
Next steps
Concrete changes, not "research more" filler.
- •Avoid keeping Cockatoo / crested Apistogramma with long-finned fish like Angelfish.
Try instead
- →Avoid keeping Cockatoo / crested Apistogramma 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. Apistogramma cacatuoides
Primary: aquarium size, water chemistry, behaviour, and compatibility (URL verified in upgrade script; recheck if site content changes).
- FishBase. Apistogramma cacatuoides
Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.
- Wikipedia. Apistogramma cacatuoides
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 + Cockatoo / crested Apistogramma
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.