I'm bummed!! I left town for 5 days and came back to a dead 3 stalk Candy Cane and a dying Open Brain Coral. Everything was stable when I left. Readings upon my return were
NO3 0-.25, PO4 0, Ca 400, PH 8.1, Temp 82. Alk 6, SG 1.024
Any thoughts? I'd like to correct this problem before it...