Thats interesting info.
I run a Phoenix bulb.

Very nice Brad, that really does just sum it all up perfectly.

Pictures as promised not my best work but here you go.
My blue spot I love this guy.
http://i246.photobucket.com/albums/g...r/IMG_0203.jpg

http://i246.photobucket.com/albums/g...r/IMG_0188.jpg

My brown Acros.
http://i246.photobucket.com/albums/g...r/IMG_0190.jpg

Full tank shot.
http://i246.photobucket.com/albums/g...IMG_021635.jpg
I just fed some live BS thanks Niel, and picked up two new pieces Thanks Cprowler.

That is the cutest little clam!

The photos make it hard to tell, but are the two browned out pieces in the shade of your plumbing? Have you tried moving them around a bit, maybe to the right of where they are now?

If you want to reduce the zooxanthellae density you could try Zeospur2. It doesn't require the full system and works exceptionally well. I've used and seen instant results in hours, but you must be careful and follow instructions closely.

The clam is a Squamosa I have a Maxima that is around the other side and is about the same size. This one was all brown when I got him, but is tuning a nice shade of blue right now.

The two pieces are almost right under the light so I don't think that is the problem. i think my nutrient might be a bit on the high side.
I might be able to finish the plumbing on my new stand this weekend and that will allow me to move some stuff around and change my standpipes as I am just not happy with the way it is now.

I will put my to clams in my refugium under 175MH 14.000k SE bulb.
Tank is 12" deep and I am thinking that would be close to 20" deep and under 250w DE any thoughts on that?

After I get it all moved around I might try some of the zeo products like the zeospur2 and see what that does.

Your clams will be fine under the 175w bulb. Mine were about 14" below my 175w bulb and they just loved it. I think you'll be fine, and your two frags will probably come around in no time.

I don't know anything about zeo, so I can't say anything.