do you have a substrate in the tank also? you will have to wait longer than a week to stock your tank. You need you tank to cycle, if you search this site for cycling a tank you will get tons of useful info. Also others here will tell you all about it
(i just know the basics) But you will need a source of ammonia. Dont add the bala, they do need huge tanks, and they are schooling fish. Frogs would be fine if that is what you want, but if you want to add fish also, let us know and we can suggest some for you. As for the temperature, is it a constant 82 degrees or does it fluxuate alot?