long story short. i help my friend set up a 45g tank 4 days ago from start i got the water from outside i added Chlorine removable n it had other benefits (always do that step since day 1) n today i went over 2 see hows the tank n found out that he when 2 the pet store n they told him that he couldn't use water from out side bcz it has to much Chlorine n other b.s ..so they told him to buy a bubblier with a air stone n a liquid called( safe start was 7.99) n to use tap water n he would b good like that n in 24 hr he could add fish .....im mad cus everything was set up good ..so now he has no filter in the tank just the bubblier n the air stone