Hi zachattacks, and welcome to the AA forum!
You will find all kinds of articles and advice from very experienced aquarists on this forum. I'm kind of new in the freshwater fish world, but from what I hear, you will probably need to consider a much larger home for your goldies. They seem to need more space than some other tropical fish, as I'm sure someone will pipe in to tell you. That said, your fantail is gorgeous, and I know you will have a great time learning all you can about this new world.