clown fish?

[kdpuffer]

so i have been reading and asking questions and am kinda spun here. clown fish it seems are bizarre little creatures. i have been told all are female and once dominance is established the subdominant fish does a little jerry springer style sex change and turns male. i also have heard that they start as a larva and after a week or so "metamorpihisize" like a freakin power ranger or something and wham you got a clownfish. what the heck are they fish or insects. i am used to cichlids where they lay eggs, eggs hatch, and you have fish that grow into bigger fish. any clarification would be greatly appreciated. thanks