SuncrestReef
That Apex guy
Over the past few days some of my LPS corals have been losing tissue. It started about a week ago with a favia, then my large acan colony, and now my plate coral. I monitor my parameters carefully and the only thing that has changed is phosphate. I've been working to reduce phosphate over the past several weeks to combat a few patches of stubborn algae, and now for the past week or so my PO4 has been consistently around 0.01 - 0.02 ppm. In the past it was between 0.05 - 0.10 ppm:
Is it possible this reduction in PO4 could be the cause? I could easily bring the levels back up to where they were before.
There has been no other change in lighting or flow, and these corals had been healthy for many months until this week. All of my other LPS (hammers, duncans, gonioporas, lobos, etc.) and SPS seem to be doing fine. I spot feed all my corals Reef Roids twice per week.
My parameters are:
Temp = 78
Salinity = 1.026
pH = 8.1 - 8.35
Alk = 8.20 dKH
Cal = 420 ppm
Mag = 1360 ppm
PO4 = 0.01 - 0.02 ppm
NO3 = 4 - 8 ppm
Thoughts?
Is it possible this reduction in PO4 could be the cause? I could easily bring the levels back up to where they were before.
There has been no other change in lighting or flow, and these corals had been healthy for many months until this week. All of my other LPS (hammers, duncans, gonioporas, lobos, etc.) and SPS seem to be doing fine. I spot feed all my corals Reef Roids twice per week.
My parameters are:
Temp = 78
Salinity = 1.026
pH = 8.1 - 8.35
Alk = 8.20 dKH
Cal = 420 ppm
Mag = 1360 ppm
PO4 = 0.01 - 0.02 ppm
NO3 = 4 - 8 ppm
Thoughts?
