Dwarf Scissortail Rasbora
Dwarf Scissortail Rasbora
Dwarf Scissortail Rasbora (Rasbosoma spilocerca) is a smaller, nano-aquarium-friendly version of the Scissortail Rasbora theme — the same characteristic caudal fin spot and movement pattern scaled down to a fish barely 1.5 inches long. Spilocerca means 'spotted tail' in Greek. Placed in the distinct genus Rasbosoma rather than Rasbora, reflecting its separate evolutionary lineage.
Feeding & Care Tip: Sera Vipan Tropical Flakes and Hikari Micro Pellets make excellent daily staples. Supplement 2–3× per week with Hikari Frozen or Freeze-Dried Baby Brine Shrimp, Hikari Frozen or Freeze-Dried Tubifex Worms, or Hikari Vibra Bites. Feed small amounts 2–3 times daily.
Native to the rivers and streams of the Malay Peninsula and Sumatra — soft to moderately soft water with moderate current. The distinct genus Rasbosoma was established to separate this and related species from the larger Rasbora genus.
Keep in groups of at least 8. The dwarf size makes this species suitable for standard nano and community aquariums where the full-sized Scissortail would be too large. Active and fast-swimming — compatible with peaceful community fish of similar size.
An excellent choice for aquarists who love the scissortail aesthetic but need a fish that fits in standard-sized aquariums.
Care & Ideal Parameters
| Difficulty | Easy |
| Temperament | Peaceful — active schooling community |
| Typical Adult Size | 1.5 inches (3.8 cm) |
| Min. Group Size | 8 minimum |
| Ideal Temp | 72–82°F (22–28°C) |
| Ideal pH | 6.0–7.5 |
| Ideal GH | 3–15 dGH |
| Ideal KH | 1–8 dKH |
| Staple Food | Sera Vipan Tropical Flakes; Hikari Micro Pellets |
| Treat / Supplement | Hikari Frozen or Freeze-Dried Baby Brine Shrimp; Hikari Frozen or Freeze-Dried Tubifex Worms; Hikari Vibra Bites |
| Origin | Malay Peninsula and Sumatra |
| Notes | Rasbosoma — distinct genus from Rasbora. Spilocerca = 'spotted tail'. Nano-sized scissortail — suitable for standard aquariums. Active swimmer. |
