Seachem Flourish Trace supplies a broad range of necessary trace elements for proper health and growth of live aquarium plants. Trace elements are normally depleted by utilization, oxidation and precipitation and are important to replenish on a regular basis. Restores trace elements on a regular basisResolves a wide variety of visible plant problemsSupplies a broad range of trace elements for proper plant health and growthOxidation and precipitation occur more rapidly with trace elements than with other micronutrients, making it important to restore trace elements on a regular basis. Flourish Trace may be used alone or in conjunction with Seachem Flourish for best results. By providing trace elements separately from essential minerals, you are able to replenish trace elements more frequently without unnecessary build-up of components that are used more slowly. Signs of trace element deficiencies: Boron: Death of stem and root apical meristem, leaves twisted, young tissue most affectedCobalt: Used for nitrogen fixation, same as nitrogen deficiency signs (stunted growth)Copper: Young leaves dark green, twisted, wilted, tip remains aliveManganese: Chlorosis of young leaves, with smallest veins remaining green, necrosis between veinsMolybdenum: Chlorosis, twisting, death of young leavesZinc: Reduced leaf size, shortened internodes, chlorosis, spotted leaves, older leaves most affectedNickel: lack of germination or seed formation, required for iron absorptionDirections: Use 1 capful (5 mL) for every 80 L (20 gallons) twice a week. Guaranteed Analysis: Boron (B) - 0. 0028% Cobalt (Co) - 0. 00003% Copper (Cu) - 0. 0032% Manganese (Mn) - 0. 0085% Molybdenum (Mo) - 0. 0003% Zinc (Zn) - 0. 0169% Rubidium (Rb) - 0. 000008% Nickel (Ni) - 0. 000003% Vanadium (V) - 0. 000002%