Need Kalk Top Up System Suggestions

[ron101]

Originally Posted by kwirky

how does 2 part skew your salinity? you mean your specific gravity (density) reading?

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).