Assertion: phosphate's concentration | /r/HasProperty | attained in reef aquaria
Facets:
value: frequently
type: TEMPORAL
Source sentences:
text: This inhibition of calcification takes place at concentrations frequently attained in reef aquaria, and may begin at levels below those detectable by hobby test kits.
text: This inhibition of calcification takes place at concentrations frequently attained in reef aquaria and may begin at levels below those detectable by hobby test kits.