fish-tank › fish species
Koi Angelfish (Pterophyllum scalare var.)
Orange-and-black variant of P. scalare; same tall body needs 18in+ tank height. Pair-bonded breeders get aggressive.
Specifications
- ecosystem
- freshwater
- min tank gallons
- 55
- adult size in
- 6
- temperature range f
- 75-82
- ph range
- 6.0-7.5
- gh range dgh
- 3-12
- care difficulty
- intermediate
- aggression
- semi_aggressive
- community compatible
- yes
- schooling min count
- 1
- diet
- omnivore
- lifespan years
- 8-12
- tank zone
- mid
Sources
- Aquarium Co-Op video / blog content · ingest 2026-05-06
- Practical Fishkeeping public articles · ingest 2026-05-06