hey guys this may sound like a stupid question but i dont know much about acrylic. the only thing i like about them is they are light haha they scratch to easy. but anywho i picked up a used one and im about to fill it up all the way to clean it. i dont plan on adding any dechlor because i may end up draining the water anyway. would the tap water chlorine hurt the tank? or do i have to add dechlor?