Elos Extra Trace is a mix of trace elements needed for coral growth and improved coloration. Elos Extra Trace is produced by mixing several laboratory quality salts with a special compound to improve absorption by corals. Extra Trace contains manganese, barium, boron, iron and gold. The bottle cap includes a dropper for precise dosing.
.84 Fl Oz Dropper Bottle (highly concentrated: treats / 3 300 gal. of water)