Just curious how putting untreated water may affect your qater quality. Although after filled, I'' be adding a dechlor, but is that too late? I plan on doing 25-30% water changes weekly on a 110G, does chlorine/chloramine affect tbe bio activity? How about the varying temperature of the water if only using cold? Is it better to mix hot/cold to get close to the current tank temperature? Inquiring minds want to know.....