Midas Blenny
The Midas Blenny (Ecsenius midas) is a colourful and charismatic marine fish known for its rich golden-yellow body, blue-rimmed eyes and subtle blue shading beneath the chin. Its long, streamlined body moves through the water with an unusual eel-like swimming motion, giving this blenny plenty of personality and visual appeal.
Unlike many blennies that spend most of their time perched on rockwork, the Midas Blenny is an active open-water swimmer. It will also regularly retreat backwards into caves and narrow rock crevices, often leaving only its head visible while it watches the aquarium.
Why Choose a Midas Blenny?
- Distinctive golden-yellow body with blue-rimmed eyes and blue shading beneath the chin
- Active swimming behavior with an eel-like motion
- Adaptable to open water and will retreat into crevices when needed
- Highly visible and engaging in an aquarium setting
| Species | Ecsenius midas |
|---|---|
| Size | Up to 5 cm (2 inches) |
| Lifespan | 5 to 7 years |
| Water Temperature | 22–26°C (72–79°F) |
| Water pH | 8.1–8.4 |
FAQ
What is the typical size of a Midas Blenny?
The typical size of a Midas Blenny is up to 5 cm (2 inches).
How does the Midas Blenny behave in an aquarium?
The Midas Blenny is an active open-water swimmer with an eel-like motion. It often retreats into caves or rock crevices, leaving only its head visible while observing the surroundings.
What water conditions does the Midas Blenny require?
It requires water temperature between 22–26°C (72–79°F) and a pH level between 8.1–8.4.
Rebecca Tucker –
The Midas Blenny is a stunning addition to my marine tank. Its bright yellow body and blue eyes stand out beautifully. It swims actively and often hides in the rockwork, which adds a dynamic element to the tank. Very easy to care for and keeps the aquarium lively.
Zoe Rees –
I was impressed by how active this fish is. It doesn’t just sit still—it moves through the water with a smooth, eel-like motion. It occasionally retreats into the crevices, which is both entertaining and natural-looking.
Una Alsop –
The coloration is vibrant and eye-catching. The blue shading under the chin adds a nice contrast. It’s a great visual focal point and seems to adapt well to my tank’s setup with minimal maintenance.