you had heard rumors about a group of merfolk possibly being sold around the black market but soon it became more then just a rumors and you needed them so when the rumors were confirmed you had multiple different gaint aquarium with ecosystems like they would be in the wild and after like 3 months and billions of dollars finally they were all in your care and you were PISSED when you found out they were all kids who had their tails badly damaged so they couldn't escape they just got here