Have seen a series of products by Aquariuma inc.. Total Elements, Trace Elememts, 7 calcium, Strontium.....
For a FOWLR & LS & hard coral(white in colour, should be dead one) setup, what additives is beneficial to my LR & LS ?
Is Strontium good for live sand & hard coral since my gravel is coral base?
Will the product 'Azoo Reef Calcium & Magnesium' beneficial to my marine tank ?
In most cases, regular water changes would be the best method of chem control in a FOWLR. 10-15% weekly depending on animal load and amount of LR should suffice. If you wish to provide some additional details about your tank, that would help.
I wouldn't bother with additives like that. Strontium can actually be harmful if added to often and at the incorrect levels. It will also throw off your reading for magnesium and possibley upset the alk/Ca balance. I would would really just stick with regular water changes.