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Pterophyllum scalare (var)
Care guide, husbandry, breeding, disease, and sourcing intelligence on Koi Angelfish - written by the Fast Aquatics editorial team.
Koi Angelfish requires a minimum of 55 gallons for healthy adults. The minimum is based on 6 inches adult size and territorial range. Plan a tank sized for adult footprint, HOB or canister filter rated 4-6x volume, dechlorinated water, appropriate temperature heater, and stocking-appropriate hardscape.
The Koi Angelfish is rated intermediate difficulty on this care sheet. It needs a tank of at least 55 gallons. Adults reach about 6 inches and live 8-10 years. Koi Angelfish is a intermediate-care freshwater species that thrives in tanks of 55 gallons or larger with stable parameters. Best paired with peaceful tankmates of similar size and water-chemistry needs.
Koi Angelfish reaches 6 inches at adulthood with a captive lifespan of 8-10 years with proper care. The minimum is based on 6 inches adult size and territorial range. Plan a tank sized for adult footprint, HOB or canister filter rated 4-6x volume, dechlorinated water, appropriate temperature heater, and stocking-appropriate hardscape.
Koi Angelfish is susceptible to standard freshwater diseases (ich, columnaris, fin rot, bacterial infections). Quarantine new Koi Angelfish for 4 weeks before adding to display. Koi Angelfish prefers freshwater parameters: temperature 74-80°F, pH 6.5-7.5, GH 4-12 dGH, KH 3-8 dKH, ammonia + nitrite 0 ppm, nitrate under 20 ppm. Use dechlorinator on every water change.
Other species in the same category with care profiles on Fast Aquatics. Click any name for the full husbandry breakdown.
Koi Angelfish care recommendations cross-checked against the following authoritative references and our internal vendor + breeder database.
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