It depends in my opinion. I have a tiny mandarin in my 20 g. For about 2 months now. Our pod population has just kept on growing and growing. Even without phytoplankton, we started adding phytoplankton though now just so the pods don’t starve. Of course it’s different for all of us, but my entire back wall is filled with tiny dots of copepods. And my mandarin is still a baby and she is less than an inch. If you get a baby, you might be able to keep her with tons of pods and no aggressive tank mates. My clowns nipped at her the first time, but now they always wait for her underneath the ledge she sleeps on, she also sleeps under a monticap. When I added my royal gramma, I was worried, but the royal gramma literally follows her around watching her eat and when my cleaner shrimp comes over, my gramma rolls out of his cave and makes a wall in between my shrimp and my mandarin. Depends on you, personally I wouldn’t reLly put them in a 14 gallon unless you can find one even tinier than mine. Then when it gets bigger, your pod population will decrease and you have to move it to a different tank with even more copepods. Maybe a 40 would work better. Good luck! Also I agree with Paul, keeping a mandarin in a 14 wouldn’t work that well


