Their size is noticably larger after two weeks or so normally, but they are still small. It's all relative. My Platy fry are generally twice as big after two weeks, but twice as big is still pretty small.
I can get some pics for you. I have a month old swordtail that's about 1/2 of an inch long. And I have about 1 week old swordtails and platys mixed together.
i now what im doing and everyday water changes is fine for the tank its not like i do large changes anyway
and yea if u could show me pics that would be great
thanks