Orange Chalice

[Reef Pilot]

Originally Posted by Nano

A kh of 7 isn't anything to fret over. If your lights are at 90% it may be too much. Other parameters would help if listed.

KH was down to 7 after water change, but am adjusting my dosing to bring it up to 8 again. Currently today at 7.5, so not quite there yet. Ca at 400. N03 is zero. P04 at .06 at last check (Hanna checker) and varies between zero and .07 lately. Haven't tested Mg for a while, so not sure what it is right now.

As discussed, I suspect it is the light, though, as a couple of other new corals had bleaching, too. My Tyree Cyphastrea Japonica is not doing too well either. I moved it down and into partial shade. I hope I wasn't too late with that one. My new Yellow Birdsnest was moved down too, and it seems to be OK now.

My older corals, incl some SPS right near the top of my tank seem to be doing fine, with new growth and good colour.