You are right, fish stores and big box stores should have hand-outs or something. New aquariums usually need to cycle from 4-8 weeks to build up the correct bacteria. Google "aquarium nitrogen cycle." You will find lots of info that way. Good luck!
Abba (and Jose)
RIP: Copper 5/29/2011, Abigail, Eleanore
Rehomed: Angel, Cotton Candy, Fetti, Lavender, Alice