ordered 2X4LReef fusion is the best 2 part additive I have found. Part 1 includes all trace elements in equal proportion to the levels used in relation to Calcium and Alk (if that makes sense). It's a little pricier than the BRS stuff but it's worth every penny in my mind.
Good choice! I order the 4L bottles from Amazon.com as it's cheaper. Unfortunately they don't last me too long dosing 100+ml/day (still messing with it since I got the new colonies) but it is certainly a top of the line 2 part additive.ordered 2X4L
My Mg is kept in check with weekly 10% water changes. I did have to use Kent Tech M to add Mg when I was using Red Sea salt. I have been using Reef Crystals exclusively on this tank but will be switching to Crystal Reef soon.hey Ted are you dosing Magnesium separately or Fusion 1&2 cover everything for you?
i am a little bit low on mg with dosing it.
thanks