hey , quick question my water evaporates at a rapid paste, about an inch per day.is this normal? no light and no top/hood. also around anything that's going into the water there's white calcium build up, i know salt does that but just want to verify that its normal, thanks guys!one more question is i set up before reading very much and i used just conditioned tap water, now i know i should only use RO
water, if every water change i use RO
will the original tap water and contaminates go away over time? or should i just change it now?thanks again!