Hello Schila. It doesnÃ¢â‚¬â„¢t sound like a case of root rot. Since the tips are brown
and you only water once a week, it sounds like not enough water. Try watering
twice a week making sure to thoroughly wet the root ball and allow it to drain.
This wonÃ¢â‚¬â„¢t make the brown tips go away but the plant should perk up. Keep us
Ken here with The Home Depot in the Chicago area