acropora frag bleaching

hello, I recently got a frag of acropora not sure what kind. first couple of weeks, it was doing fine but now I notice that the bottom part of it is starting to bleach.

alk is at 9-9.2
cal 450

ran out of test kits for mag

any tips?
 
is it bleaching or losing its tissue? bleaching is where its turning white but there is still PE, RTN is where the actual tissue is coming off the coral and PE is gone.
 
hmm hard to tell in the pic, however bleaching is usually is caused by lights that are too intense and it is odd for it to be doing it from the base.
 
Could be lighting, but judging by the zoas appearance your tank is underfed. The sps looks like it's dying: no polyp extension, white base etc.
 
Zoas looked almost transparent. I was feeding very lightly, skimming way too much. Once I slowed down skimming and fed more it was a night and day difference. Not only zoas, but everything came back to life with vibrant colors.
 
Zoas looked almost transparent. I was feeding very lightly, skimming way too much. Once I slowed down skimming and fed more it was a night and day difference. Not only zoas, but everything came back to life with vibrant colors.
Dumb question, but when you say rise in nitrates, what nitrate levels are seeing success at?
 
Dumb question, but when you say rise in nitrates, what nitrate levels are seeing success at?

Different tanks will vary, but I personally like to keep mine right around 10ppm everything looks better and grows better for me. I've tried to bring the levels down from time to time and SPS truly suffer for me.
 
Different tanks will vary, but I personally like to keep mine right around 10ppm everything looks better and grows better for me. I've tried to bring the levels down from time to time and SPS truly suffer for me.
10 ppm? That's awesome lol I was freaking out about letting my nitrates get that high. I hadn't been testing simply because everything was looking great... guess that explains a lot :p
 
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