Merry Christmas to you and yours, hope you're having fun! I'll keep this short and hope it's not too much of a brain drain question for the Xmas break. My tank is still maturing, with no concerns really, set up early October. I've noticed my Kh is on the low side, 7 to 7.2. When I was getting things together I bought used kamoer dosers, dosing containers etc for future use. I also purchased what I thought were general supplements Kh, Mg and Ca. I went to read the instructions on the Kh tonight with a view to buffering and it simply refers to being used following the Balling light system directions. My question is simply this: is it a straightforward system to use, is it beneficial and does my tank need to be established longer or can it be introduced at any time. I may be trying to get too complex for softies, may be easier to change to a salt with a higher initial Kh.? I'm currently using tmc. I started with reef crystals before my lfs decided to stop stocking it. I know, order online ... . I have this daft notion of trying to support local retailers instead of just going there to chat fish all the time lol. And that was short???