Take the following as truth: Hypersaline brine and artificial seawater can be used with Champia parvula only if they are accompanied by at least 50% natural seawater.
Then the following statement: "Artificial seawater and hypersaline brine can be used with Champia parvula, but only if they are accompanied by at least 50% natural seawater." is true, false, or inconclusive?