Blind Cave Tetra (Astyanax mexicanus)

Blind Cave Tetra (Astyanax mexicanus)

The Blind Cave Tetra is a unique and fascinating addition to any freshwater aquarium. Completely eyeless and pale in color, this mysterious fish thrives in dark, well-structured environments and captivates with its unusual appearance. Despite its lack of sight, the Blind Cave Tetra is an active and peaceful swimmer, using its keen sense of smell and vibration detection to navigate and interact with its tankmates.

Care & Tank Setup

• Tank Size: Minimum 20 gallons
• Environment: Prefers dimly lit or heavily planted tanks with hiding spots and open swimming areas
• Water Conditions: Temperature 70°–78°F (21°–26°C), pH 6.5–8.0
• Behavior: Peaceful and social; best kept in groups of 6 or more to encourage natural schooling behavior

Diet & Feeding

Blind Cave Tetras are omnivores. They thrive on:

• High-quality flakes or pellets
• Frozen or live foods such as brine shrimp, daphnia, or bloodworms
• Occasional plant matter

A varied diet keeps them healthy and active.

Why Choose Blind Cave Tetra?

• Unique, eyeless appearance for an intriguing tank display
• Peaceful and hardy community fish
• Active schooling behavior
• Thrives in dimly lit or structured aquariums

Size: Adults grow up to 2–3 inches (5–7 cm)

The Blind Cave Tetra adds mystery, movement, and a one-of-a-kind look to your freshwater tank, making it a fascinating choice for hobbyists of all experience levels.