Koi / Galaxy (marble)
A variant of Betta (Betta splendens)
Representative Bettaphoto — a dedicated image of this exact morph isn't available yet.
Marble-gene bettas with shifting red/black/white koi-like blotches; 'Galaxy' adds dense star-like iridescent speckling.
Keeper tips for this variant
The marble gene is a 'jumping gene', so coloration will keep changing throughout the fish's life — buy for personality, not a fixed pattern, since it won't stay the same.