Violet Aquarium Twostick Stingfish (Inimicus filamentosus) – XL Size (5″ to 6″)
The Twostick Stingfish is a unique and visually striking species suitable for experienced reef aquarium enthusiasts.
- Reef Compatible: With Caution
- Care Level: Intermediate to Advanced
- Disposition: Peaceful
- Minimum Tank Size: 30–50 Gallons
- Mature Size: 4–6 Inches
| Feature | Detail |
|---|---|
| Species | Inimicus filamentosus |
| Size (Mature) | 4–6 Inches |
| Compatibility | Reef with caution |
| Care Level | Intermediate to Advanced |
| Minimum Tank Size | 30–50 Gallons |
FAQ
Is the Twostick Stingfish safe to keep with other reef fish?
The Twostick Stingfish can coexist with reef fish, but caution is advised due to its potential to nip at soft corals or polyps. Monitor interactions closely and avoid housing with delicate or slow-moving species.
What is the expected growth size of this fish?
The Twostick Stingfish typically reaches a mature size of 4 to 6 inches, depending on tank conditions and diet.
What water parameters are recommended for this species?
Please contact customer service



Justin Piper –
Added the Twostick Stingfish to my 40-gallon reef tank after researching compatibility. It’s peaceful and adds a unique look. I keep an eye on it near soft corals, but no issues so far. Good for intermediate keepers who want a striking but calm fish.
Jan Reid –
The fish arrived healthy and has been active in the tank for two months. It doesn’t bother other fish and stays near the back wall. I noticed it occasionally brushes against a soft coral, so I’ve moved it slightly to avoid contact.
David Martin –
This is a beautiful addition to my aquarium. The coloration and movement are impressive. I’ve maintained stable water parameters and the fish has grown steadily to about 5 inches. Very satisfied with the purchase.