Aquarium - Dena Muething

I have been to the Seattle Aquarium before but it was when I was a lot younger so I don't remember it. I really liked it and I enjoyed the wide varned a lot about marine life from this experience and I think it was a great way to learn at it. I thought it was really interesting how the Giant Pacific Salmon is kept for around a year in the aquarium then released to the puget sound to breed. I think coming and seeing these organisms opened my eyes and gave me a new perspective because a lot of the organisms we saw live so close to us. My question is how are new species introduced into tanks? And how do the other organisms in that tank react to the new species? have been to the Seattle Aquarium before but it was when I was a lot younger so I don't remember it. I really liked it and I enjoyed the wide variety and diversity of marine organisms not just from the Pacific Northwest, but all over the world. I think I learned a lot about marine life from this experience and I think it was a great way to learn about it. I thought it was really interesting how the Giant Pacific Salmon is kept for around a year in the aquarium then released to the puget sound to breed. I think coming and seeing these organisms opened my eyes and gave me a new perspective because a lot of the organisms we saw live so close to us. My question is how are new species introduced into tanks? And how do the other organisms in that tank react to the new species? Pictured is the spotted lagoon jelly and the Moorish Idol.