These two are completely different products. Component A Strong is a part of Components Strong set which is dedicated for preparing your own Component 1+2+3+. Component A is a microelements supplement advised especially for use with calcium reactors. Both of the products contain different amounts of various microelements.
Component A is designed to correct minor deficiencies of strontium and barium in marine aquariums. The unique formula was created based on the same strontium and barium ratio as natural seawater. Skimmer and filtration media tend to remove trace elements from the water of closed aquarium system, making micro nutrients supplementation necessary. Due to the perfect balance of elements Component A allows creating conditions almost identical with natural sea water. Strontium supports the formation of coral skeletal tissue and improves the absorption of calcium. It also supports the growth of soft corals. Safe concentration of the preparation minimizes the chance of micro nutrients overdose, therefore Component A can also be used by novice aquarists.
Dosage: In mixed-reef aquariums 5 ml per 100 l of water once a week. The dose can also be adjusted to the calcium consumption – 1 ml for every 20 ppm/100 l of water. In aquariums run with Balling method – 20 ml/1 l Calcium solution. When using Components A, B, C a 5-minute time interval should be kept between each dose.
Do not mix or store components in one container.