Texas-Panama. Length – up to 9 cm. the Body is high, compressed from the sides. The color is silver, with a brass sheen. The top is olive, in the back half of the body there is a dark stripe. The fins are reddish.
In the caves of San Luis Potosi (Mexico), this species forms a blind race. In blind fish, the eyes are covered with growths. The skin is devoid of pigmentation, pink, colorless fins. Females are fuller. Despite their blindness, fish are very mobile and playful. Obstacles and they find food through the organs of the lateral line and sense of Smell.
It is best to keep blind fish separately in species elongated aquariums without plants with stones that do not have sharp edges, at a temperature of 18-24 °C. water of medium hardness. Fish feed on animals and plant foods. With the addition of fresh water, a pair of fish begins to spawn. The fins at this time are burning like a beet. Eggs female sweeps at the surface of the water. Possible group spawning. Producers after spawning planted and replace part of the water of the same quality. This is due to the fact that during spawning, a lot of milk is formed, which greatly spoil the water, and the caviar can die. Off occurs in 3-4 days, the juveniles begin to swim on 6-7 days. Until 18 days have fry persist eyes, then they, not developing, tightened leathery film.
With good feeding and cleanliness, fry grow quickly and reach sexual maturity in 3-4 months.