Description
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.
Product for aquarium use only. Store in a cool place away from the light. Keep away from children.
Do not overtighten the screw, otherwise the cover might be damaged.
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Why Singapore reefers add AF Component A 200ml
Strontium and barium are the elements most local hobbyists forget about until coral growth stalls or coralline starts looking patchy. Because protein skimmers and filtration media strip these micro-nutrients out of a closed system continuously, a reef running here with good skimming will deplete them faster than many expect. We keep this 200ml bottle in stock as the convenient way to replace those two specific elements without disturbing your calcium and alkalinity balance.
It pairs naturally with a Balling regimen, topping up what your main calcium, KH and magnesium dosing does not cover. In our experience the dose is small and steady wins; over-dosing trace elements causes more grief than under-dosing, and effects show up slowly. Start light, observe your soft corals and SPS over a few weeks, and only adjust once you have seen a clear response rather than chasing a number daily.
Explore our wider marine additives range, and for context on getting the dose right read our reef strontium dosing guide and reef trace elements dosing guide.

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