I would use a calcium reactor. it doses everything corals are made out of. Kalkreactors are fine. I like to do both= high calcium demand or reactor is to small. I would only dose calcium and buffer. IME maitaining cal,alk ph is all thats needed. Dosing all that trace when you can't test it accuatly imo is a waste if you feed good foods everyday.= foods are full of trace. But regardless of what you do a calcium reactor is the best IME. I can maintain my calcium alk levels the closes with only that. Nothing else I've done made it easy. Sure I may need to add turbo or buffer every once in awhile= not keeping up on my reactor maintance. But overall it's the easier for me.