starting over

Question
I have lost all my goldfish to ick even after treating them. It just kept coming back. I aquired this fish tank from my daughter who never cleaned the tank in 5 years. I want to start all over and clean everything and know nothing about fish tanks. please help me.

Answer
The best way to clean an aquarium is to use hot water and a clean sponge.  Most things come out will just a little scrubbing.  If there is algae on the glass, it should come off  if it has been left to dry.  If there is hard water or lime stains, use a razor blade carefully on the inside.  Goldfish are generally lost to illness because they are treated for symptoms, but the problem causing the illness is never addressed. Goldfish need a min of 20g per fish.
 When you get your tank set up, it should be cycled.  It's a process that helps beneficial bacteria build up in your tank to handle fish waste.  Here is a good page on the cycling process.
http://www.cichlid-forum.com/articles/fishless_cycling.php
and this site has a great FREE e-book for beginners.
http://www.aquaticcommunity.com/ebook.html
You may have to register, but it is also a good forum for help, if you need it.