Seachem Reef Advantage Magnesium

Description

UPC: 000116063708

Severely depleted levels of magnesium (below 800 mg/L) can
cause depressed pH levels and an inability to maintain proper magnesium levels.
The most frequent causes of magnesium deficiency are use of kalkwasser,
frequent overdosing of a carbonate additive, or low levels in the salt mix
itself. Kalkwasser, for instance, precipitates magnesium as magnesium hydroxide
while excess carbonates precipitate it as magnesium carbonate. In both cases,
this means that magnesium that was present in the water is now unavailable. Of
the two, magnesium hydroxide and magnesium carbonate, the former is more
problematic; it is extremely insoluble. Once magnesium has precipitated as
magnesium hydroxide, it will never redissolve. Magnesium carbonate will
redissolve; however, it does so slowly. So, while it will go back into
solution, there will be a significant portion of time in which magnesium levels
are depleted.