About: http://webisa.webdatacommons.org/163030815

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	If you want raise both GH and KH, you can do both with CaCO3, it will contribute Ca cations for GH and CO3 anions for KH. Calcite or aragonite are both mineral forms of CaCO3 (same chemically, but with different crystalline structure).
http://www.w3.org/ns/prov#wasQuotedFrom	tropicalfishkeeping.com