Hi i am looking for some advice on weekly treatments do i nead to ad somethink to the tank on a weekly basice?. I have read about cycling and changing the water and the good bactiria but do i nead to add anything LPS says yes but they would so they can sell more products i dont wont to be adding chemicals if i dont nead to I dont have my tank yet as i am trying to find out as much imfo as poss first any advice would greatly help thanks.