My Polys are bleaching?

[geiges]

My larger polyps seem to be drastically losing their color. I was wondering if this is due to too much light, not enough, or wrong spectrum. I am running 2 Plusrite 175w 20k bulbs 8 in. off the water in my 72 bowfront. Water parameters are all in line. I ordered a set of Reeflux 175w 12k bulbs to try but they have not arrived yet. Any ideas why this is happening?
Thanks in advance for anyone's advice!

[uscharalph]

Are they new? How long have they been in your tank? Any lighting changes recently?

[geiges]

Thay are two months old no light chang.but all my new zoo,s
that I got at the same time look good?
the one rock hase zoo's and polys & the zoo's look good but the polys are bleaching.
would post pic but this site well not up load pic.

[geiges]

anyone out there?

[zippopunk1]

do u know what light they were under at the lfs

[geiges]

thay came from a friends frag tank that has 2 400w mh
30"from the water, the frag tank is 6ft long and 12" deep
all my zoo's came from him too.

[happyface888]

hey Im sitting in the same boat aswell. I had a small nice coloney, they were under some 96w pcs and later I swtiched to t5s they lost their colors and looked bleach. the coloney looks smaller too.

[m2434]

They don't seem to need lots of light. Mine are doing MUCH better at the bottom of my tank under PCs that at the bottom of my tank under MHs...

[geiges]

I did move mine to the bottom two days a go but the cheep Plusrite 175w 20k bulbs I can't find any info or anyone useing them .
so thay got to go and I ordered a set of Reeflux 175w 12k bulbs.