According to Google, you are the first person in the Universe to say "what kind of animals do you keep in your fish tank?"
Why don't you ask Google if fish are animals? You absolute moron.
"What kind of fish do you keep in your fish tank?"
"Oh, well, I actually have more (animals) than just fish in there."
"Oh really? What else (what "other animals") do you have?
"Turtles and frogs."