I think it would be nice if spinosaurs and other large carnivores would tolerate each others as long as the spinos have access to fish and the non-piscivore carnivores aren't too hungry.
I would definitely like to have an exhibit featuring niche partitioning
An interesting proposition. So basically, all piscivores could prioritise eating first before attacking the other carnivores just like carnivores prioritise feeders over herbivores now.