Pureblood is right when he says that a small clone should not put off any oder till you are almost ready to harvest,but do be prepared for the oder.Plan ahead because it will stink to the high heavens when that time comes.In my expierence the odor starts around the 4th to 5th week of vegging and starts to increase as you start to flower.Now, also keep in mind that you will get used to the smell and you may not always smell it.People who arn't used to it will pick it up right away.Friend,neighbors and cops.I would invest in an exaust fan along with a carbon filter along with some ona gel.A fan & filter may not be cheap but its cheaper than getting locked up.Remember this;Most people get popped for growing in their homes by telling other people about their grow and odor leaks.Be wise,smart and careful.Good luck