[RalfP]

Anthony,
thank you very much,
I add QFI Trace-Elements at 10% of recommended dosage.
I do 7% waterchange a week and dosing NaCl-free salt, also adding Traceelements that way.
After the pictures you've seen (TOTM-pictures) have been made, I'am adding 50% of
recommended dosage of a product new to the German market, Mrutzeks Oragano-Trace,
which (OrganoTrace) is also buyable from other vendors here.
I got a colour and growth boost on montipora since that.
Basic idea of OrganoTrace is to attach elements to organic molecules to make it easier for
coral to get them.

javajaws,
I use the one from Tropic Marin called "Pro special Mineral", also used to add minerals to Osmosis water for freshwater aquariums, which is relatively expensive.
Normal Reef-Salt is mainly NaCl, so NaCl-free Salz will naturally be more expensive than that.
The price here is about 4 times that of normal Reefsalt.

Ralf