I think frogs are easier to take care of than rats. Personally, I prefer fish. Extremely easy to take care of, and the filter pretty much keeps the tank clean. Of course fish are also quite boring and all you can do is stare at them. I suppose a rat would be much more exciting. Many, many years ago, before I was in high school even, I took care of my friends frog while he went on vacation (the frog's name was Jabba ), the stupid thing escape from the cage twice while under my care. The first time I search my whole room over and couldn't find him. After living the day in constant fear of sitting or stepping on him I picked up my shoe to put it on and found it to be a big heavier than usuall. I tilted it to the side and out jumped Jabba. I still shudder at the thought of what might have happened had I shoved my foot into the shoe without picking it up first...