Clam losing color

[peterdinh]

I have my clam under 70 metal hallide. I noticed that when I look at it from the top of the aquarium , there is a little color. When I look at it through the glass, then it seems I can not see much of the blue or green. Is this comon? or do I have a sick clam

 

[chris&barb]

clams will look different from the top then from through the side. a photo would really help. also tell us more about your tank and how long you've had the clam

 

[Herefishyfishy]

Probably just due to the angle of view. Is there less color on the top down view than before?
What type clam? Croceas need a lot of light, Derasa can get by on less. Some feel that Strontium and iodine help on color. James Fatheree has a great book on Tracnid clams, well worth reading.