I am using a mix of Fauna Marin foods. Ultra min F, Ultra Clam, Ultra Life Mixed with Ultra Min S and a drop of Ultra Booster. I mix enough for a week and I am good to go. This may sound like a lot. But I really don't use a lot at a time for my size tank. I have been doing this a month and haven't used more than a 1/4 of each container. And have had no spike in parameters at all so far.
As for the Hammer, Well my Acro fell on my hammer and one branch got stung. It turned white halfway down the branch. It has since gotten its color back and has the polyps extending from the blue tip again. I have had it 4 weeks or so now. My Monti has grown more than 1/2" in the past 4 weeks. So I think my system is doing pretty good. Only time will tell.