Quote:
Originally Posted by ron101
In the saltwater aquarium context they are more or less equivalent. Two part solutions increase salinity over time due the fact that they are made from calcium chloride and sodium bicarbonate. So along with the calcium and bicarbonate comes sodium and chloride ions (ie components of salt).
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Never heard of this one before. Been dosing two-part for years and never noticed anything like that. But I do perform regular water changes.
I only use kalk to help stabilize pH and alk levels. Kalk alone wouldn't be able to keep up with the demands from a 165 gallon system with clams and SPS.