Assertion: magnesium sulfate's magnesium | /r/HasProperty | important ion
Facets:
value: for reef aquarists
type: TRANSITIVE-OBJECT
value: in reef aquaria
type: LOCATION
Source sentences:
text: Magnesium is an important ion in reef aquaria.
text: Magnesium is an important ion for reef aquarists to understand and monitor.
text: Magnesium is an important ion for reef aquarists.