How large and deep would have to be a water tank to breed a bluefin tuna? and a yellowfin tuna?

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We have received an anonimous question: how large and deep would have to be a water tank to breed a one month old bluefin tuna? and a yellowfin tuna?

Man doing water tanks maitenance in ICAR Murcia

Patricia Reglero from Planet Tuna answered: There are different sizes where you can have one month old bluefin tuna. To have a better view of the installations we are using for our experimental work you can check the webpage of ICAR (Bluefin tuna Research Infraestructure in Murcia, Southeast Spain). The most suitable tanks will be the ones described in that webpage as Facility D) Weaning facility  ‐ juvenile tuna weaning unit consisting of a cylindrical tank of 100m3, four of 50 m3 and 4 of 20 m3 with associated recirculation and water treatment system. We are not working with yellowfin tuna since this species is not found in the Mediterranean Sea but they do in Panama and you can see a description of their tanks in their webpage.