Someone who will remain nameless, did a sample test of a LFS, who also will remain nameless, and found the following:
Different types of corals are maintained in this system.
Salinity 1.026 (refractometer)
pH: not tested. He did not want to risk cross contamination with his pH probe.
Alk: 300+ ppm (Hanna).
Ca: 550 ppm (Salifert)
Mg: not tested
NO3: 100 ppm (Salifert)
PO4: 2.5 ppm (Hanna)
He also said he would tactfully inform the store owner.