Koi Angelfish Care Guide

Pterophyllum scalare var. Koi · Freshwater Fish

Koi Angelfish
AI-generated illustration of Koi Angelfish
Temperature
76-82F
pH
6.0-7.5
Suggested tank
55+ gal
Origin
Captive-bred domestic angelfish morph
Family
Cichlidae
Placement
Middle to upper water
Flow
Low to moderate

What Koi Angelfish look like

Koi Angelfish are domestic Pterophyllum scalare selected for irregular koi-like orange, red, white, black, and gold patterning. They retain the tall laterally compressed angelfish body, long dorsal and anal fins, and paired trailing ventral filaments. Pattern intensity varies by line and diet, with orange crown or shoulder patches especially common.

Behavior & temperament

Koi Angelfish behave like other domestic freshwater angelfish. They are graceful mid-water cichlids that may be peaceful in spacious community tanks but become territorial when pairing or breeding. They can eat very small fish, and fin-nipping tank mates can damage their long fins.

Diet & feeding

Koi Angelfish are omnivorous cichlids. Feed quality angelfish or cichlid flakes and pellets, frozen bloodworms, brine shrimp, mysis, daphnia, blackworms, and occasional vegetable-based foods.

Behind the name

Pterophyllum means wing leaf, referring to the tall fins; scalare refers to a ladder-like form. Koi describes the ornamental red-white-black patchwork pattern and does not indicate relation to koi carp.

Plan your tank

Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.

Keeping Koi Angelfish?

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