Koi Swordtail

The Koi Swordtail is a colorful and active freshwater livebearer known for its attractive patterning and distinctive sword-like extension on the male’s lower tail fin. Its peaceful nature and active swimming make it a great addition to community aquariums. Koi Swordtails thrive in well-maintained aquariums with plenty of swimming space and stable water conditions.

Care Guide:

Size: Up to 5 inches
Temperature: 72–82 °F
pH: 7.0–8.0

Temperament: Peaceful and active. Generally compatible with other peaceful community fish. Males may occasionally chase females or display mild territorial behavior, so providing plenty of swimming space and maintaining an appropriate male-to-female ratio is recommended.

Diet: Omnivorous. Feed a high-quality flake or pellet food supplemented with algae-based foods and occasional frozen or live foods such as bloodworms, brine shrimp, and daphnia.

Care guides/tips can be found on Fish4Ever's YouTube channel.

Please note: photos are a typical representation of the fish you will receive, but not the exact fish. Variables such as size, markings, and coloration should be expected.

Fish name: Xiphophorus hellerii

Quantity: 1 Koi Swordtail

All fish sales have an alive-on-arrival guarantee to ensure they arrive alive or your money back. Fish are only shipped on Mondays within the continental US to ensure timely delivery. See our Shipping Policy & Refund Policy for more detail.