What else can I have in my fish tank?

I have a male betta and a brown underwater frog. I am getting an albino underwater frog today. The betta gets along very well with my frog. They swim around together. What else can I have? Can I have a newt? I like pretty fish and the cool amphibian underwater animals. Thx:) ps this question is about my friends... show more I have a male betta and a brown underwater frog. I am getting an albino underwater frog today. The betta gets along very well with my frog. They swim around together. What else can I have? Can I have a newt? I like pretty fish and the cool amphibian underwater animals. Thx:) ps this question is about my friends fish tank she told me 2 write this.
5 answers 5