When I set up show tanks with show animals, and set up grandstands.. Not..

Is there a marine specialist assigned to the show tank?
She is the one that starts the show, then people go and sit.
Though I have had that problem also, but I had put the grandstands 2 tiles away so it didnt work.

Shows are the hardest thing to do but let's look at a couple features. First check the tank - Is there an animal there with show tricks? If so, cross this out - Guests will not come if there is no animals in show. Secondly, check to see if there's a Marine Specialist assigned to the show tank. She/He is responsible for the show to take place, without her the show will not begin. Thirdly, check the grandstands - Are they too expensive? If grandstand prices are high, guests will ignore the show saying it's too expensive. Finally, decorate the show area - this not only makes the area look beautiful (And raise zoo rating) but it attracts guests to your show. Add backdrops beside the grandstands and flags with bright colors (Red, blue, black & yellow are colors I use), this will grab the guests' attention and curiosity; they will sit down if a show is about to start. Also add food/drink/restrooms by the show tank - They will come over just to fill their needs.

This will take some time and a lot of cash, but eventually people will sit down and watch the show. They're very tricky for me, but from my own experiences this seems to work. Hope this helps you too!

Agreed of above said but I am playing the aquatics show park scenario and it won't let me change grandstand price just the admission price? And all my stands r decored.