Mustard Halfmoon Betta Male – Betta splendens

Mustard Halfmoon Betta Male – Betta splendens

The Mustard Halfmoon Betta Male is a stunning ornamental Betta splendens variety admired for its striking contrast of deep body colour and broad mustard-yellow finnage. With its dramatic halfmoon tail spread and elegant movement, this fish is a true centrepiece for a well-maintained tropical aquarium.

Halfmoon bettas are prized for their impressive finnage and graceful display. This male is best suited to a calm, heated setup with gentle water flow, clean conditions, and plenty of places to rest close to the surface.

Care Requirements

Scientific Name	Betta splendens
Common Name	Mustard Halfmoon Betta Male
Origin	Captive bred ornamental strain
Adult Size	6–7 cm
Temperament	Territorial; best kept singly
Tank Size	Minimum 25 litres
Temperature	24–28°C
pH Range	6.5–7.5
Diet	High-quality betta pellets, frozen foods, live treats
Difficulty	Easy to moderate

Feeding Guide

Feed a varied protein-rich diet with premium betta pellets as the staple food. Supplement with frozen or live foods such as bloodworm, brine shrimp, and daphnia for colour, condition, and enrichment. Feed small portions once or twice daily.

Tank Setup & Habitat

Provide a heated, filtered aquarium with gentle current, a secure lid, and plenty of plants or décor for shelter. Long-finned bettas benefit from calm water and a layout that allows easy access to the surface without strong flow.

Compatibility

Male bettas should not be kept with other male bettas. Peaceful tank mates may work in a suitable aquarium, but avoid aggressive species and fin-nippers. Many aquarists prefer keeping a premium halfmoon male as the star fish in a dedicated display setup.

Health & Wellness

Stable warm water and excellent water quality are essential for maintaining finnage and overall health. Halfmoon bettas can be prone to fin damage if kept with unsuitable tank mates, rough décor, or excessive water flow, so careful setup is important.

Acclimation Guide

Float the bag to equalise temperature, then slowly mix aquarium water into the bag over 20–30 minutes before release. Keep lighting low during introduction and allow the fish time to settle in peacefully.

Frequently Asked Questions

What is a Halfmoon Betta?
A Halfmoon Betta is a betta with a tail that can fan out to an impressive semicircle when fully displayed.

Can I keep this male with another male betta?
No. Male bettas are territorial and should not be kept together.

Is this fish suitable for beginners?
Yes, provided it is kept in a heated, filtered, well-maintained aquarium.

Why is it called Mustard?
The name refers to the rich yellow fin colour that contrasts beautifully with the darker body.

What food is best for this fish?
A quality betta pellet diet with occasional frozen or live foods is ideal.