( that tank is plastic , not acrylic. )
From the looks of your first pictures there are bubbles on the side of the glass , from putting water in it .. and it is a little cloudy , im guessing you mixed up some salt water or bought it from the LFS then dumped nemo in there?
Please hear me out , I know alot of people are giving you advice etc but you have to just take the time to follow this . I could care less about the fish , thousands of people buy stuff and let it die .. at least you took the time to come onto reef central and post in the right forum heh . Im sure there are people with clown fish in betta fish bowls etc .
What is your budget? , I wouldnt suggest getting another fish for right now or doing the swap thing .. So if you can get credit , you do not need todo alot of research most of us here started with little knowledge BUT alot of us started knowing it would be expensive and used 30/55 gallon tanks at first and bought the equipment then got our live rock , fish etc .
You have the rock , sand , ( and im guessing you are just buying salt water from the lfs , since you dont have a RO unit (-cleans tap water basically , removes chlorine , metals etc etc- )
1 You can buy a 10 gallon tank anywhere , even walmart sells them .
2 Get a AquaClear by hagen , its a hang on filter you want the "30" model ( Put the carbon and the sponge it comes with into it , Clean the filter every week , just boil up some water on the stove then let it cool and clean the sponge in that , make sure its dry when you put it back in )
http://www.marinedepot.com/md_viewItem.asp?idproduct=HG10600
3 Buy a test kit for pH , Nitrate , Ammonia ( Walmart also sells something called fast test strips , which might be easier for you , they are pricey and dont last as long as the normal liquid based test kits )
as for lighting i need to know your budget .
Keep in mind , marine animals are not "gold fish"
