🐟 Tiger Koi Betta Fish (Betta splendens)
Solitary Display Fish • Yellow-Orange Tiger Striping • Colours That Keep Evolving
 
📋 The Tiger Koi Betta is defined by a predominantly yellow or orange base with dark stripe or spot markings, distinct from standard Koi's more even red, black, and white mix. This lineage traces back through Koi Nemo and Nemo Galaxy breeding lines. Every fish carries a unique combination.
"Koi" and "Tiger" are commercial names for a marble colour pattern in Betta splendens, not a separate species or fixed breed. The marble gene is a transposon, a piece of DNA that physically moves around the genome and switches pigment on or off as the fish ages. That means your fish's exact pattern keeps evolving throughout its life, independent of care quality: a stripe pattern you buy today may develop substantially more or less black banding within a year or two. It's normal and not a sign of illness, and it's what makes a marble betta a living work of art that keeps surprising you.
Beyond the colour genetics, care is the same as for any betta: a warm, filtered, solitary setup with smooth décor.
 
💡 Highlights
🐯 Yellow-Orange Tiger Striping: Distinct from Koi's even red-black-white mix
🎨 Colours That Keep Evolving: A living work of art
👑 A Solitary Display Betta: Best kept individually
✨ Every Fish Is Unique: No two marble patterns are alike
🌡️ Loves Warmth and Stability: Same care as any betta