Black Tail Kohaku/Koi Swordtail 4cm (Group of 5)

The Black Tail Kohaku Swordtail (Xiphophorus hellerii var.) is a beautifully patterned fancy swordtail variety, combining the classic Kohaku-inspired red and white colouration with a striking jet-black tail — creating a bold tricolour contrast that makes this variety stand out in any community aquarium. The characteristic elongated sword extension of the male adds further elegance to an already eye-catching fish. Hardy, active, and easy to keep, the Black Tail Kohaku Swordtail is a great choice for livebearer enthusiasts and community tank keepers alike.

Care Guide

• Tank Size: Minimum 100L; active swimmers that appreciate length; males can be mildly aggressive toward each other — keep one male to multiple females or in a spacious community
• Water Parameters: pH 7.0–8.0 | Temp 22–28°C | Adaptable; prefers slightly hard, alkaline water
• Diet: Omnivorous — quality flake or micro pellet food; supplement with frozen or live daphnia, brine shrimp, and blanched vegetables
• Temperament: Generally peaceful; males may spar with each other — avoid keeping multiple males in small tanks
• Tank Setup: Planted aquarium with open swimming areas; floating plants appreciated for fry cover if breeding
• Skill Level: Beginner
• Max Size: 12cm (males including sword)