Twostick Stingfish TS100401 – Inimicus filamentosus
This species is known as the Stingfish and is suitable for reef tanks with caution due to its potential to nip at soft corals and anemones.
Care Level: Intermediate to Advanced
Disposition: Peaceful
Minimum Tank Size: 30–50 Gallons
Mature Size: 4–6 Inches
| Specification | Detail |
|---|---|
| Size (approx) | 3 inches |
| Reef Compatibility | With Caution |
| Difficulty Level | Intermediate to Advanced |
| Adult Size | 4–6 inches |
FAQ
Is the Stingfish safe to keep with soft corals?
It is recommended to keep with caution as the Stingfish may nip at soft corals and anemones. Proper tank setup and careful placement can help minimize risks.
What is the expected adult size of this fish?
The mature size of the Twostick Stingfish is between 4 and 6 inches.
What tank size is required for this species?
A minimum tank size of 30–50 gallons is recommended.

Gavin Nolan –
The fish arrived healthy and has been active in the 40-gallon tank for two months. It’s peaceful and doesn’t bother the corals, though I keep it away from soft polyps. Good for intermediate reef keepers.
Lily Davies –
It’s a unique addition to the tank. I noticed it doesn’t eat much, so I added more algae to supplement. It’s calm and stays near the back wall. Works well with other fish.
Kevin Howard –
After a month, the fish has grown to about 4 inches. I’m happy with the size and behavior. I keep it in a 50-gallon tank with caution, and it hasn’t damaged any corals.