Blind Cave Tetra Care Guide and Species Overview

The Blind Cave Tetra is a unique and fascinating freshwater fish known for its lack of functional eyes and pale, translucent body. This fish is ideal for aquarists who enjoy unusual and low-light aquarium species.

Origin and Background

Blind Cave Tetras originate from underground rivers and caves in northeastern Mexico. They have adapted to life in complete darkness, which has resulted in the loss of pigmentation and functional eyes over generations.

Appearance and Size

Adult Blind Cave Tetras typically reach 2 to 2.5 inches in length. Their bodies are pale white to pinkish in color, and they have fully functional fins. The eyes are small and covered with skin, giving them a blind appearance.

Temperament and Behavior

Blind Cave Tetras are peaceful, schooling fish. They should be kept in groups of at least six or more to encourage natural behavior. They rely on sensory organs other than eyes to navigate, often swimming close to the substrate and among plants.

Tank Setup and Water Parameters

A minimum tank size of 20 gallons is recommended for a small group. These fish prefer subdued lighting and heavily planted tanks to simulate cave-like conditions. Decorations such as driftwood, rocks, and caves provide hiding places and help reduce stress.

Water temperature should be kept between 72 and 78 degrees Fahrenheit. The preferred pH range is 6.5 to 7.5 with soft to moderate water hardness. Regular water changes and stable water conditions are important for their health.

Diet and Feeding

Blind Cave Tetras are omnivores and will accept flake, micro pellet, frozen, or live foods. They often rely on movement and smell to locate food, so sinking pellets and finely chopped live foods work well.

Tank Mates

They are compatible with other peaceful, slow-moving fish. Avoid aggressive or fast-swimming species that may outcompete them for food or cause stress. Other small tetras, Corydoras, and peaceful bottom dwellers make good tank mates.

Why Choose Blind Cave Tetra

Blind Cave Tetras are ideal for aquarists looking for a rare and interesting species. Their unique adaptations and calm schooling behavior make them a fascinating addition to a community or species-only aquarium.

Conclusion

With proper group size, low-light conditions, and a balanced diet, Blind Cave Tetras will thrive and exhibit natural schooling behavior. They are a captivating choice for anyone interested in unusual and specialized freshwater fish.