Low Alkalinity

Guys, unless I missed it, nobody has said anything about Magnesium. Coraline is a great consumer of Mg.

Sentari if I were you I would acurately mesure your Mg (TM test kit works well) then if its low add a Mg specific additive.

Good advise - magnesium is also pretty important, and I should have pointed that out earlier - thanks for the advise, Rob :thumbup:

Hennie
 
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