Ok I am thinking about this 3 gallon or the other glass one with less lighting for the office I work in, it will be on my desk and I have time to take care of it. I currently have a 6 gallon nano cube with 2 clowns and just live rock (been up and running 2 years and fish seem happy) and a 20 gallon fresh tank with just plastic plants and 5 fish at home. I want to only use live plants and a few small fish maybe cardinal tetras something colorful and how many can I put in safely. I am new to this planted stuff so help me out. Heres a link to the tank. Thanks.
http://www.drsfostersmith.com/product/prod_display.cfm?c=3578+3730+15494&pcatid=15494
http://www.drsfostersmith.com/product/prod_display.cfm?c=3578+3730+15494&pcatid=15494