For my birthday/christmis my mom wants to buy me a saltwater aquarium because I got accepted into some smart kid thing gifted student thing or I dont know what it is o was just told I got 99 percent on a bunch of tests lol. I have no idea why she says she chose another aquarium she said she's wanted one since she was kid and loves seeing them in building. And she didn't think I was ready for one now that I have a freshwater she trusts me bla bla bla. My bday is dec 3 so Im getting it then or Christmas. So I'm totally confused. I've been trying to comprehend about what powerheads, all that stuff Thats for saltwater is. What size tank should I get? I prefer marineland products so I plan to get an emporer power filter, do these do well with saltwater? Also acrylic or glass? I've heard salt can stain the glass is this true? I have so many questions can anyone recommend a good saltwater beginner site? My parents don't want to go over 500, they said if it would get me a better tank in the long run they will though. So what's a good list of things I need and some good sites that explains saltwater.