they live in schools and fish what ever you believe.
Fish tend to live in the warm waters of the gulf stream!!
They live in schools.
they live in schools of 2-5
they swim in schools
because they have high nutrient levels
Clumped
Clumped
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Most tetra's swim in schools. Danios and barbs also swim in schools.
I guess anything is possible but Tuna do live in the Ocean and are very very large, fast swimming fish who hunt in schools/shoals. I think you would need a very large aquarium to house a Tuna and a large wallet full of money to feed it and keep it alive.