Saltwater Fish
Ecsenius midas
Ecsenius midas
(Midas Blenny)

Species Description…

Scientific Name: Ecsenius midas
Common Name: Midas Blenny
Species Group: Blenny
Habitat: Reef Safe
Care Level: Beginner
Temperament: Peaceful
Diet Type: Omnivore
Role in Aquarium: Community Fish
Max Fish Length: 6 (inches)
Min Aquarium Size: 30 (gallons)
Native Range: Indo-Pacific
Ecsenius Midas - The Midas Blenny

Ecsenius Midas (The Midas Blenny)

Overview

  • Native to the Indo-Pacific region, commonly inhabiting coral reefs, rocky slopes, and lagoon areas.
  • Characterized by its striking golden-yellow to orange coloration, occasionally exhibiting subtle hints of blue around the eyes and fins.
  • An active, curious fish known for its playful nature, often swimming openly in the aquarium rather than hiding.
  • Highly popular among aquarists for its vibrant coloration, active behavior, and relatively peaceful temperament.
  • Thrives best in aquariums with plenty of live rock formations, ample hiding spots, and stable water conditions.

Feeding

  • Omnivorous, primarily feeding on zooplankton, algae, and small marine organisms in its natural environment.
  • In captivity, readily accepts frozen foods such as mysis shrimp, brine shrimp, krill, and quality marine flakes or pellets.
  • Benefits from regular feedings of algae-based foods, including spirulina and seaweed sheets, to supplement its diet.
  • Feed multiple times daily in small quantities to match its active, grazing lifestyle and maintain optimal health.
  • A varied diet supports vibrant coloration, robust health, and longevity.

Habitat

  • Typically inhabits shallow coral reefs and rocky reef slopes rich in marine algae and small marine invertebrates.
  • Frequently seen perched on coral formations, observing its surroundings closely and darting back into cover when disturbed.
  • Aquarium setups must replicate natural conditions with abundant live rock structures for hiding and perching opportunities.
  • Stable water conditions, moderate flow, and effective filtration are critical for maintaining a suitable environment.
  • Providing ample hiding places and open swimming areas encourages natural behaviors and reduces stress.

Fish Care

  • Optimal water temperature: 74-80°F (23-27°C) to ensure proper metabolic function and overall health.
  • Preferred pH range: 8.1-8.4, maintaining salinity at stable levels of 1.020-1.025.
  • Regular water changes, thorough monitoring of water parameters, and efficient filtration are crucial to maintaining excellent water quality.
  • Generally reef-safe, posing minimal risk to corals or ornamental invertebrates.
  • Providing consistent feeding and environmental conditions reduces stress and enhances long-term health and vitality.

Compatibility

  • Generally peaceful but may exhibit territorial behavior toward similar species or those encroaching on favored perching spots.
  • Compatible with peaceful marine fish such as small gobies, clownfish, cardinalfish, and various reef-safe community fish.
  • Avoid keeping with highly aggressive or predatory fish, as they can intimidate or harm the blenny.
  • Best suited to community aquariums where it contributes to the natural balance through grazing and activity.
  • Providing ample hiding and resting areas greatly reduces potential territorial disputes and maintains aquarium harmony.

Aquarium Behavior

  • An active and engaging species, frequently observed swimming openly and perching visibly on live rock or coral structures.
  • Displays characteristic darting behavior when alarmed, quickly retreating into safe hiding spots or rock crevices.
  • Initially cautious in new environments, gradually becoming more confident and bold as it acclimates to aquarium life.
  • Providing a naturalistic environment with sufficient structures and hiding spots promotes natural behaviors and reduces stress.
  • Over time, typically develops recognition of its caretaker and becomes interactive, especially during feeding sessions.