Male Betta Yellow, Black & White Marble Koi Longfin

A striking contrast of colors defines this Betta splendens, featuring a koi-style marble pattern with golden yellow, black patches and creamy white areas. Small blue iridescent highlights on some scales add another layer of visual interest.

Its visible morphology is consistent with a long-finned male. A broad, fan-shaped caudal fin and well-developed dorsal and anal fins display pale translucent areas and dark markings. The tail has a Halfmoon appearance.

Technical specs & care

• SKU: BT-130
• Scientific name: Betta splendens.
• Sex: Male, based on visible morphology.
• Variety and fins: Yellow, black and white koi-style marble; long fins with a Halfmoon-like fan tail, with spread angle unconfirmed.
• Ideal temperature: 25-28 °C / 77-82.4 °F; keep stable with a heater.
• Recommended pH: 6.5-7.5.
• Minimum aquarium: 20 liters / 5.3 US gallons for one fish, with a sponge filter or gentle-flow filtration and a fully cycled aquarium.
• Temperament: Territorial, especially toward other bettas.
• Compatibility: Keep only one male per aquarium. In larger tanks, small peaceful companions that do not nip fins may be considered; avoid other bettas and fish with showy fins. Compatibility with shrimp is not guaranteed.
• Environment: Provide a lid, unobstructed surface access, plants and resting areas; avoid sharp decorations and strong currents.
• Diet: Complete betta food supplemented with suitable small frozen or live invertebrates.

Color variations

You will receive a fish of the advertised species. Each fish is unique, so its colors, color intensity and pattern distribution may vary from the photographs.

Quarantine and shipping preparation

All fish we sell have undergone strict quarantine in isolated tanks, where they receive medication and antiparasitic treatments before being offered for sale. For every shipment, we use medication to help relax the fish during transit and fill the bag with oxygen to improve transport conditions.