If you get a decent heater there is no reason you can't use it later on when you get your full aquarium set upTAZZ said:okay so bottom line... get a water heater heeh... but would u think i could last maybe a week on what ive got - with regular water changes... cause im kinda broke but should b gettin paid soon - and would really prefer to fork out a lil more and get the whole aquarium setup.