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What do you currently feed the tank? Size of tank, type of fish? You do not need to dose trace elements. If you do regular water changes the depleted elements will get replenished.
i have a 55 gal tank 3 damsels 1 ****** trigger 1 emerald crab 7 reef safe hermit crabs 1 unknown blue legged crab 20-25 pounds of lr 3 red pink mushrooms 1 green mushroom 1 aiptasia anemone and about 5 feather dusters