Paraclinus nigripinnis (Rhino Blenny) | Small and Territorial Marine Fish

The Paraclinus nigripinnis, commonly known as the Rhino Blenny, is a fascinating and discreet marine fish, valued for its unique appearance and territorial nature. Native to the reefs of the Western Atlantic and Caribbean, this species is an expert at blending into rocky and algae-covered environments, where it spends most of its time observing its surroundings. Due to its territorial tendencies, it thrives in a well-structured aquarium with plenty of hiding spots.

Key Benefits:

✔ Small and intriguing fish – Perfectly blends into rocky décor.

✔ Unique territorial behavior – Actively defends its space.

✔ Easy to feed – Accepts a varied diet including mysis shrimp, brine shrimp, and enriched pellets.

✔ Ideal for nano-aquariums – Can be kept in well-planned small tanks.

✔ Hardy and suitable for intermediate aquarists – Thrives in established tanks.

Technical Specifications:

• Scientific Name: Paraclinus nigripinnis

• Average Adult Size: 5-7 cm

• Origin: Caribbean, Western Atlantic

• Ideal Temperature: 24-28°C

• Salinity: 1.023 – 1.025

• pH: 8.1 – 8.4

• Lighting: Low to moderate

• Water Flow: Moderate (prefers calm areas with hiding spots)

Care Instructions & Recommendations:

1️⃣ Compatibility: Territorial, avoid keeping with similar blennies in small tanks.

2️⃣ Feeding: Carnivorous, eats mysis shrimp, brine shrimp, worms, and enriched foods.

3️⃣ Behavior: Solitary, enjoys rocky areas for hiding.

4️⃣ Acclimation: Drip acclimation recommended for smooth adaptation.

5️⃣ Maintenance: Provide a well-structured décor with hiding spots for security.