More- Water chem is in the beholder. Each of us have our own regiments. I would advise the beginner to hold off on most supplements untill you get the hang for balancing your Cal and ALK. those two directly effect one another and push the PH with each.
All coralvite, Vital, Purple up, Kalkwasser, Calcuim, Alk Buffers, Strontium, Montiblenum, Iodine, Iodate, Mag, Iron, Bromine, The list goes on and on. Most additives are just ways for the manufactures to get you to buy more supplements.
Trace elements are replaced with waterchanges, wait and see how your bioload effectively draws from your water before you go adding anything. Odds are in msaller tanks the waterchange will take care of everything. Its on larger tanks that changing 50 gallons per week isnt always possible that replacing trace via supplements becomes needed.
MO
-RFB