Assertion: tetra's water | /r/HasProperty | hard
Facets:
value: moderately
type: DEGREE
value: very
type: DEGREE
value: slightly
type: DEGREE
Source sentences:
text: The Glowlight tetra should be kept in soft or slightly hard water, preferably within the dH 5-12 range.
text: It can even withstand very hard water, though it will do best in soft.
text: They like water that is moderately hard but can survive in water that range from very hard to very soft.