epansion problem!

[mimi090807]

hi, i reached level 53 in zoo story 2 , but i cant expand any more, and other players say that i reached the max and i will not be able to expand any more! but if i cant expand where can i put animals if need to buy? i didnt finish the goal list!
thanks for any kind of help
zoo name: nsma
storm id : mimi090807

[maguar]

You can place some of the lower earning animals in storage to create room.