- Sku: 8323270
- Vendor: Squeaky's Aquatics
Radium Rosetail Male Betta (Betta splendens)
The Radium Rosetail Male Betta (Betta splendens) is a true show-stopper, a cool steel-blue and violet body finished with dramatic rosetail finnage so heavily branched and ruffled it looks like the petals of a rose. This is a premium, hand-selected male for collectors who want a centerpiece with serious wow factor. Browse our other live freshwater fish while you plan his home.
Please note: each betta is a hand-picked individual, so the exact fish you receive will vary slightly from the photo. You are welcome to pick your favorite in store.
Care Guide
Bettas are tropical fish that need a heated, gently filtered tank with easy access to the surface, since they breathe air through a special labyrinth organ. Rosetails carry an extra-heavy load of fin, so they reward a little extra care: keep the water pristine, the flow soft, and the decor smooth so those delicate, ruffled fins do not tear. Always use a lid, as bettas are jumpers.
- Minimum tank size: 5 gallons for one male.
- Temperature: 78 to 82°F. A heater is required.
- Water: pH 6.5 to 7.5, soft to moderately hard. Keep it clean and the filter flow gentle.
- Diet: Carnivore. Feed a quality betta pellet as the staple plus frozen or freeze-dried bloodworms, brine shrimp, and daphnia for color and variety.
- Decor: Use silk or live plants and smooth-edged ornaments. Avoid sharp or rough decorations that can snag heavy rosetail fins.
Specifications
| Common Name | Radium Rosetail Male Betta |
| Scientific Name | Betta splendens |
| Tail Type | Rosetail (extreme halfmoon) |
| Care Level | Beginner |
| Temperament | Semi-aggressive |
| Adult Size | About 2.5 to 3 inches including fins |
| Minimum Tank | 5 gallons (one male) |
| Temperature | 78 to 82°F |
| pH | 6.5 to 7.5 |
| Diet | Carnivore |
| Availability | In-store pickup only |
Compatibility
A single male betta shines as the centerpiece of a peaceful community tank. Good tankmates include small peaceful schooling fish, corydoras catfish, kuhli loaches, otocinclus, and nerite snails. Avoid fin-nippers like tiger barbs, never add a second betta of either sex long-term, and skip large or aggressive fish. With finnage this elaborate, many keepers prefer to give him a calm, well-planted tank of his own so nothing nips at those fins.
Recommended Foods & Supplies
- New Life Spectrum Betta Semi-Floating Pellet or Seachem NutriDiet Betta with Probiotics as a staple food.
- Seachem Prime to dechlorinate every water change and keep water pristine for his fins.
- A Hikari Dark Rock Cave and ZooMed Betta Mopani Wood for smooth, safe cover.
- Fritz Casuarina Cones to add gentle, leaf-litter tannins bettas love.
- Live aquarium plants or floating cover like Water Hyacinth.
FAQ
What is a rosetail betta?
Rosetail is an extreme form of the halfmoon tail with so much extra branching that the fins ruffle and overlap like rose petals. It is prized for its dramatic look and simply benefits from clean water and gentle flow.
Can I keep him with another betta?
No. Male bettas are territorial and will fight other males, and pairing with a female only works briefly under controlled breeding conditions. Keep him as the only betta in the tank.
Does he need a heater?
Yes. Bettas are tropical and need stable water in the upper 70s. A small adjustable heater is essential.
What size tank does he really need?
Five gallons is a comfortable minimum, with a heater, gentle filter, and a lid. A larger, well-planted tank keeps his water cleaner and his fins in top shape.
Have a question?
Radium Rosetail Male Betta (Betta splendens)
