What is the consensus minimum school size for X-Ray Tetras to display natural behaviors?
Answer
Six individuals
X-Ray Tetras possess a strong social inclination characteristic of the tetra group, and keeping them singly is strongly discouraged as it leads to stress, timidity, and erratic behavior. Aquarists generally agree that a minimum school size of six individuals is necessary to allow the fish to feel secure enough to exhibit their natural behaviors. Furthermore, larger groups, often ten or more, are noted to result in even greater confidence and cohesion within the school.
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