Yellow stag turning green

[lee_d_m]

Hi,

I bought a bright yellow staghorn a few weeks back. It's doing well and showing a number of growth tips and good polyp extension.

But over the last few days, I've noticed it starting to have a slight green hue to it. It's getting lots of light, about 550 PAR on my meter, so I'm wondering what else might cause it to change to this colour ?

Thanks

Lee

 

[AdamNC]

This could help with some insight.

http://www.reefcentral.com/forums/showthread.php?t=2127441

 

[cugly]

Your po4 must be high...I use yellow on my acro to gauge my po4 level...when my po4 goes up my yellow starts to turn green n