What reptials and amphibians?

I have a 55 gal aqaurium that my son wants to make one community for multiple pets. we are doing half land/water. He likes the red eye tree frog and poison dart frog, but I dont know what go well together. We are thinking of a lizard,but nothing that gets to big. All responces are welcome, but I only want... show more I have a 55 gal aqaurium that my son wants to make one community for multiple pets. we are doing half land/water. He likes the red eye tree frog and poison dart frog, but I dont know what go well together. We are thinking of a lizard,but nothing that gets to big. All responces are welcome, but I only want professional or personal experienced answers. Thank you and God bless you in advance!
Update: What reptials and amphibians can be housed together?
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