Salifert Trace Hard, 1000ml
Directions: Dose 5 ml per 100 liters (25 gallons) once a week. When combining with Trace Soft the total dosage (ml Trace Soft + ml Trace Hard) should not exceed 10 ml per 100 liters (25 gallons).
Keep out of reach of children. In case of contact with eyes rinse with plenty of water. Only for aquarium-hobby use. Not for human consumption (directly or indirectly)! Active ingredients: Cobalt, Zinc, Iron, Manganese, Copper, Vanadate, Fluoride, Barium, Selenate.