As of yesterday when I grabbed some of his water:Salinity - 1.027 (digital refractometer)
PO4 - 0.0 ppm (Hanna ultra low phosporus meter)
NO3 - 0.25 ppm (Red Sea Pro)
Ca - 360 ppm (Red Sea Pro)
Alk - 7.7 dKh (Hanna meter)
Mg - 1560 ppm (Red Sea Pro)
Bare in mind that a large portion of his corals and fish stock were removed earlier in the week I believe.
Also, from our conversation, he was still running Red Sea NoPox (basically carbon dosing), running his giant skimmer rated for 500 gallons, and dosing 2-part in conjunction with kalk in ATO.
So altogether, still dosing foundation elements and running ultra low nutrients while in cruise control.
I can't remember if he said he was running GFO still or had any macro growing in the sump but Richard can fill that in if need be.