Black Ribbon Eel (Rhinomuraena quaesita)
Reef Compatible – With Caution
Care Level – Expert-only
Disposition – Semi-aggressive
Min. Tank Size – 75 gallons
Mature Size – 50 inches
Specifications
| Feature | Species |
|---|---|
| Species Name | Rhinomuraena quaesita |
| Size (Mature) | 50 inches |
| Minimum Tank Size | 75 gallons |
| Compatibility | Reef compatible with caution |
| Behavior | Semi-aggressive |
| Difficulty Level | Expert-only |
FAQ
Is the Black Ribbon Eel safe to keep with corals?
The Black Ribbon Eel can be kept in a reef tank, but only with caution. It may nip at soft corals or polyps, so careful selection of compatible species and placement of corals away from its path is essential.
What is the minimum tank size required for this eel?
A minimum tank size of 75 gallons is required to provide adequate space and stability for the Black Ribbon Eel.
How big does the eel grow in maturity?
The eel can reach a mature size of up to 50 inches in length.

Warren Alsop –
I’ve kept this eel for over a year in a 100-gallon tank with a well-established reef. It’s not aggressive, but it does occasionally swim near soft corals. I’ve repositioned them to avoid contact. The eel is active and fascinating to watch.
Karen Ross –
This eel is a striking addition to a large tank. I’m an expert aquarist and had concerns about compatibility, but with proper setup and coral placement, it’s been peaceful. Just avoid placing it near delicate polyps.
Joshua Simpson –
The eel is large and needs a lot of space. I’m not sure it’s suitable for smaller tanks. I keep it in a 100-gallon system with plenty of hiding spots and it seems content.