Systematics is traditionally based on morphological characters to both define species and establish classifications. In the past decades, partly due to the advent of molecular biology, traditional systematics has declined while molecular systematics has tremendously increased. This results in that fewer funding are generally provided to traditional systematics, particularly for searching new morphological characters. Aquaculture, the farming of aquatic animals, has increased exponentially in the past decades, providing today more than half of fish consumed worldwide, and is expected to continue to rise. Aquaculture requires controlling the life cycle of the farmed fish in captivity, including the rearing of early life stages. Therefore, by coupling systematics and aquaculture, it could be possible to bring new funds and facilities to the former to study the early life stages of numerous fish species and to the latter it would offer a conceptual framework to perform comparative ontogeny. Together, this could help improving our knowledge on the early life stages that could be useful for both taxonomists and zootechnicians.