OH yeah Goldfish definately eat their babies, that's why I took them out and put them in a their own tank...and everytime I see one swimming around in the 55 gallon I take it out with a cup and put it gently into the baby tank with the others

Yeah its just a air tube attached to a stone that the bubbles come out of, I have it in the corner, but it still creates quite a current.

And yes I would definately show pics of the babies if I could, but they are almost microscopic, the camera can't pick them up they are way to small. I had a dream last night about them growing though, they were very pretty in my dream lol.