- Sku: 10000275
- Vendor: Squeaky's Aquatics
Twintail Halfmoon Male Betta (Betta splendens)
This Twintail Halfmoon Male Betta (Betta splendens) is a hand-selected show betta that pairs the wide halfmoon spread with a split double tail, giving him two matching caudal lobes and an extra-broad dorsal fin that flares like a fan. Bettas are hardy, personable, and among the easiest fish to fall in love with, which makes them a perfect centerpiece for a desktop tank or planted nano. Browse the rest of our freshwater livestock while you are here.
What you see is what you get. The photo shows the exact betta you will receive. Color and finnage continue to develop as a young betta matures, and shades shift slightly with lighting and mood.
Care Guide
Bettas are a great beginner fish, but the myth that they thrive in tiny unheated bowls is just that, a myth. Give yours a small heated tank and it will reward you with bold color and a long, active life.
- Tank size: 5 gallons or larger, with a lid. Bettas are labyrinth fish that gulp air from the surface, and they are accomplished jumpers, so a cover is a must.
- Heat & flow: Keep it at a steady 78 to 82ยฐF with a heater, and use gentle filtration. A twintail carries a lot of fin, and strong current tires him out quickly, so baffle the flow if needed.
- Water: pH 6.5 to 7.5, soft to moderate hardness. Stable, clean water with regular partial changes matters more than chasing exact numbers.
- Setup: Live or silk plants and smooth decor with hiding spots. Avoid sharp or rough ornaments that can tear those heavy double-tail fins.
- Diet: A carnivore. Feed a quality staple like Xtreme Betta Floating Pellets and supplement with frozen or freeze-dried bloodworms, brine shrimp, and daphnia.
Specifications
| Common Name | Twintail Halfmoon Betta, Siamese Fighting Fish |
| Scientific Name | Betta splendens |
| Sex / Tail Type | Male, Twintail Halfmoon (double caudal lobes) |
| Care Level | Beginner |
| Temperament | Semi-aggressive, house males alone |
| Adult Size | About 2.5 to 3 in. including fins |
| Min. Tank Size | 5 gallons, heated, with a lid |
| Temperature | 78 to 82ยฐF |
| Diet | Carnivore (pellets, frozen foods) |
| Pickup | In-store pickup only |
Tank Mates & Compatibility
Male bettas are territorial and must be kept one to a tank. Never house two males together, and do not keep a male with females outside of a controlled breeding setup. In a 10 gallon or larger planted tank, a male betta can share space with peaceful, quick schooling fish like ember tetras, small rasboras, and corydoras, plus nerite snails on cleanup duty. Skip fin-nippers like tiger barbs and anything flashy or long-finned that he might mistake for a rival.
Recommended Foods & Supplies
- Xtreme Betta Floating Pellets, a krill-first staple sized for betta mouths
- Hikari Betta Ultimate Water Conditioner to dechlorinate and protect the slime coat
- Hikari Betta Revive to keep on hand for fin and disease care
- Seachem Betta Basics for easy water prep in small tanks
- Browse all freshwater livestock and supplies
FAQ
Is this the exact betta I will receive?
Yes. This is a what-you-see-is-what-you-get listing, so you take home the specific fish pictured.
What makes a twintail different from other bettas?
The caudal fin is split into two full lobes, so his tail looks like a pair of matching fans. Twintails also carry a wider dorsal fin than single-tail bettas, which adds to the full-finned look.
Can a betta really live in a bowl?
Not happily. A heated, filtered 5 gallon tank keeps the water stable and your betta healthy, active, and brightly colored for years.
Can I keep two bettas together?
No two males, ever. They will fight. Keep one male per tank, and only pair him with peaceful, non-nipping community fish in 10 gallons or more.
Have a question?

Twintail Halfmoon Male Betta (Betta splendens)


