Everything with the Mark Weiss name on it looks bad to me. Just skimming through a catalog all of the suppliments have a very broad general usage, and none of them say what they are. A very "magic powder" kind of salesmanship.
"I have an elixer right here that will cure freshwater and marine ich, promote polyp growth and regeneration, cause sps corals to morph into Ent like tree people from the Two Towers, and will cause most kids to do their homework! Promotes glass cleaning bacteria to form on the front of your tank, and a constant supply of beer in your fridge! Not a medication or suppliment!"
Don't feel bad about buying it, I still have a 2 litre bottle of Strontium sitting here that I haven't opened.