Concentrated trace elements for reef aquariums available in 4 bottles of 75ml or 250ml each Components Strong contains concentrated trace elements intended for use in reef aquariums. Components Strong in combination with Calcium, Magnesium, KH Buffer and Reef Mineral Salt are a complete set designed to maintain a reef aquarium by the method proposed by H. W. Balling, therefore these products should be used in parallel. Due to the fact that the microelements in the aquarium are consumed in the right proportion with the macroelements, the concentrations of Components Strong have been developed based on other values. Only the use of the entire range of Aquaforest products ensures effectiveness and guarantees the chemical balance in the aquarium. The amount of microelements fed depends on the individual needs of the aquarium for magnesium and calcium.Components Strong come as a set and they can’t be bought separately. SetComponent A – concentrated strontium and bariumComponent contains concentrated strontium and barium. The amount of strontium and barium depends on requirements for magnesium and calcium. 5 ml should be added to 1 litre of ready solution of calcium chloride. Recommended use with Aquaforest Calcium products. Capacity: bottle of 75ml or 250mlUS:19ml should be added to 1 US gal.Component B – concentrated heavy metalsComponent contains concentrated heavy metals. The amount of heavy metals depends on requirements for magnesium and calcium. 5 ml should be added to 1 litre of ready solution of calcium chloride. Recommended use with Aquaforest Calcium products. Capacity: bottle of 75ml or 250mlUS:19ml should be added to 1 US gal.Component C – concentrated iodide and fluorideComponent contains concentrated iodide and fluoride. The amount of iodide and fluoride depends on requirements for calcium. 5 ml should be added to 1 litre of ready solution of sodium bicarbonate. Recommended use with Aquaforest® KH Buffer product. Capacity: bottle of 75ml or 250mlUS:19ml should be added to 1 US gal.Component K – concentrated potassiumComponent contains concentrated potassium. The amount of potassium depends on requirements for magnesium and calcium. 5 ml should be added to 1 litre of ready solution of magnesium chloride and mineral salt. Recommended use with Aquaforest® Magnesium and Reef Mineral Salt product. Capacity: bottle of 75ml or 250mlUS:19ml should be added to 1 US gal.STRONG A1 ml of Strong A in 100 l of aquarium water will raise levels:Strontium (Sr) 0,32 ppmBarium (Ba) 0,000055 ppmSTRONG B1 ml of Strong B in 100 l of aquarium water will raise levels:Iron (Fe) 0,00052 ppmManganese (Mn) 0,00024 ppmCopper (Cu) 0,000075 ppmZinc (Zn) 0,000082 ppmNickel (Ni) 0,000062 ppmChromium (Cr) 0,00023 ppmSTRONG C1 ml of Strong C in 100 l of aquarium water will raise levels:Potassium (K) 0,0032 ppmIodine (I) 0,0046 ppmFluorine (F) 0,03 ppmSTRONG K1 ml of Strong K in 100 l of aquarium water will raise levels:Potassium (K) 1,0 ppm