Bicolor Blenny (Ecsenius bicolor)

Quick Stats:

• Care Level: Easy
• Temperament: Peaceful
• Diet: Omnivore
• Reef Safe: Yes
• Minimum Tank Size: 20 gallons
• Max Size: 4 inches
• Water Parameters: pH 8.1-8.4, Salinity 1.020-1.025, Temperature 72-78°F

Comprehensive Guide to Bicolor Blenny (Ecsenius bicolor)

The Bicolor Blenny, the Two-colored Blenny, or the Royal Bicolor Blenny, is renowned for saltwater aquarium enthusiasts. Here is a detailed guide covering various aspects of this species:

Habitat:

The Bicolor Blenny is found in the Western Pacific Ocean, particularly around Indonesia and the Philippines. It inhabits coral reefs and rocky areas with plenty of hiding spots.

Reef Safe:

The Bicolor Blenny is considered reef-safe as it generally does not bother corals or other invertebrates. However, caution should be exercised when keeping it with small ornamental shrimps or other delicate invertebrates.

Size:

The Bicolor Blenny can grow up to 4 inches in length, making it a suitable choice for smaller saltwater aquariums.

Temperament:

This species is generally peaceful and can be kept with various tankmates. However, it may display territorial behavior towards other blennies or similar-looking fish.

Sexual Dimorphism:

There are no significant visual differences between male and female Bicolor Blennies.

Lifespan:

With proper care, the Bicolor Blenny can live in captivity for up to 5 years.

Diet in Aquariums:

The Bicolor Blenny is an omnivore, and its diet should include a variety of foods. It will readily consume small meaty foods such as brine shrimp, mysis shrimp, and finely chopped seafood. It also benefits from having some algae or seaweed-based foods in its diet.

Aquascaping Recommendations:

Providing plenty of live rock with crevices and caves will create an ideal environment for the Bicolor Blenny. It enjoys perching on rocks and observing its surroundings.

Captive Bred Availability:

The Bicolor Blenny is commonly available as captive-bred specimens, which are generally hardier and better acclimated to aquarium life than wild-caught individuals.

Compatibility with Tankmates:

The Bicolor Blenny is generally compatible with many tankmates, including peaceful community fish and invertebrates. Here are five specific tankmates that are good choices:

1. Purple Firefish (Nemateleotris decora): Peaceful and adds vibrant color to the aquarium.
2. Yellow Watchman Goby (Cryptocentrus cinctus): Forms a symbiotic relationship with pistol shrimps and adds interesting behavior to the tank.
3. Green Chromis (Chromis viridis): Schooling fish that adds movement and liveliness to the aquarium.
4. Scarlet Skunk Cleaner Shrimp (Lysmata amboinensis): Provides cleaning services to fish and adds a unique appearance.
5. Blue Leg Hermit Crab (Clibanarius tricolor): Helps with algae control and adds activity to the aquarium floor.

Other Common Names:

The Bicolor Blenny is also known by the names Two-colored Blenny and Royal Bicolor Blenny.

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Popular Questions and Answers about Bicolor Blenny (Ecsenius bicolor) in Saltwater Aquariums:

Q: What is the ideal tank size for a Bicolor Blenny?

A: A minimum tank size of 20 gallons is recommended for a Bicolor Blenny.

Q: Can the Bicolor Blenny be kept in a reef aquarium?

A: Yes, the Bicolor Blenny is considered reef-safe and generally does not harm corals or other invertebrates.

Q: How long does the Bicolor Blenny typically live in captivity?

A: With proper care, the Bicolor Blenny can live for up to 5 years in a saltwater aquarium.

Q: What should I feed my Bicolor Blenny?

A: The diet of a Bicolor Blenny should include a variety of small meaty foods such as brine shrimp, mysis shrimp, and finely chopped seafood. It also benefits from having some algae or seaweed-based foods in its diet.

Q: Can the Bicolor Blenny be kept with other fish and invertebrates?

A: The Bicolor Blenny is generally compatible with a wide range of peaceful tankmates, including other fish and invertebrates. However, caution should be exercised when keeping it with small ornamental shrimps or delicate invertebrates.