Halfmoon Koi Male Betta 3.5cm

The Halfmoon Koi Male Betta (Betta splendens) is a spectacular domestic Betta combining the dramatic 180-degree halfmoon tail spread with the highly sought-after Koi colouration pattern — a vivid patchwork of red, orange, black, and white that mimics the markings of a traditional Japanese Koi carp. Each fish carries a unique pattern, making every Koi Betta a one-of-a-kind living work of art. A premium variety that is consistently among the most popular Bettas in the hobby.

Please note: photos are examples only. The fish you receive may vary slightly in colour and pattern.

Care Guide

• Tank Size: Minimum 20L; 30L or more recommended for best health and fin development
• Water Parameters: pH 6.5–7.5 | Temp 24–28°C | Soft to moderately hard water; stable conditions essential
• Diet: Carnivorous — quality Betta pellets as a staple; supplement with frozen or live bloodworm, daphnia, and brine shrimp
• Temperament: Males must be kept alone; will fight with other males; can be kept with peaceful, non-fin-nipping community fish
• Tank Setup: Planted aquarium with hiding spots and gentle or no flow; avoid strong currents that damage the fins
• Skill Level: Beginner
• Max Size: 7cm