RO/DI units. Kind of an iffy one. Some swear by it, others say they don't use it. Both seasoned and starters. The idea is to start with pure water so you actually know what you are adding to your tank, specially a lot of livestocks are sensitive to sertain chemicals or elements naturally found in most tap water and also some nutrients that promote nuisance growth, like algae, which you don't want in your tank.
Last edited by Bloodasp; 01-26-2011 at 03:52 AM.
|