OK thanks. I was just thinking if there was a way that I could buy water in large amounts it would mean less trips to my
LFS. I am going to store 20 litres of
SW in my barrel container with the lid sealed and then keep giving it a mix each day but I dont have a powerhead to constantly mix it. That way I can do my water changes for 4 weeks before needing to visit the
LFS. Hopefully that will work too for the
RO water I will just have to test the water before putting it into my tank