SPS bleacing

[sponger0]

My SPS is starting to bleach out of nowhere. Only two thinks I think it can be. Too much much in my phos reactor. Or the water Im using. Ive been getting it from a local store for a year now and never had a problem but the mag seems to be extremely high.

Water

Calc 440
Mag 1500
Alk 9.8
Phos .02

 

[sponger0]

Also just checked my salinity its at 1.027. Ive been keeping it at 1.025-26

 

[sneaton]

if you just changed out the gfo or added more than normal that could cause it....are the bases or tips bleaching?

 

[sneaton]

1.027 and 1500 mag is fine....did you have any alk swings?

 

[sponger0]

Alk went up .8 about 2 days ago.

I have a milli that was browning but now the whole thing is bleacing

My leng sy monti is bleaching from the center out

 

[sneaton]

check for afew ,red bugs

 

[sponger0]

Nothing looks like its been eaten. And no bugs.

 

[sponger0]

So after scrubbing the hair algae and syphoning it out of the tank, that night I did a Phos check and finally got a reading. It was reading .02.

Any thoughts?

And also I tested my ALK and evidently it took a big drop with the water change. It went down to 7.0 and I dosed last night to bring it up to 8.0.

 

[dvanacker]

nitrates? very likely its something wrong with water parameters or stability.

 

[sponger0]

Ooops. Yeah I meant to check for nitrates last night. Forget to do that with my other tests. Ill check that tonight