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BiologyThis diurnal fish feeds on algae, diatoms, and invertebrates (3). Mating is polygynous, following a consort-pair mating system in which the male closely follows behind an egg-bearing female for up to one hour, with the pair periodically descending to spawn in the algae (4) (7). Males will prevent other male competitors from interfering by blocking the intruder with his body but exhibits little aggressive behaviour (7). Although capable of breeding throughout the year, most of the species' reproductive effort is concentrated in April and May (4). It takes an average of seven days for eggs to hatch, with the young reaching sexual maturity eight to ten weeks later (7), but growth and development are dependent on food supply (3). This fish rarely lives for longer than 12 months (7).