my 2 swords went from happy to this in 36 hours. Everything else is happy and pearling. 75 gallons, 4dkh green all day long, EI dosing, 65x2 PC for 6 hours followed by 65x4 PC for 4 more hours. Roughly 400gph between canister and power heads. FE was probably a little low between 0.1 and 0.05ppm this morning, everything else looks like the SAPS EI presentation.