Hmmm, Wingo, I just viewed your thread where you were trying to sell them. Seems that you are well aware that they are in fact difficult to keep, with secret ingredients and failure to disseminate information, yet you got it to a hobbyist who doesn't even know how to feed it/doesn't even know that it isn't even electric.
Be careful. You will quickly shift your status to the same level of a guy who wants us to be aware of the realities of fish collection on one thread and selling rare/endangered fish not suited for the aquarium and illegally collected on another thread.
Again, I'm well aware that as the site grows, there will be a shift in membership. Seems to me that as we gain more vendors, more and more have much less experience than 90% of the members who are here for the hobby, not profits. We have vendors that post threads to sell stuff and on the same day, have a thread in the beginners forum asking what something is and how to care for it. This is the 3rd thread I've read in under a month where MR vendors got livestock to new hobbyists and then the new hobbyist came in here asking for information on proper care. Why didn't the vendor send them to MR first to get info they needed then let them decide to make the purchase? Oh, that's right, then they might not make the sale. Why didn't the vendor already provide the information? Right, he DOESN'T KNOW.
Vendors who sacrifice their own ethics for profit and inexperienced vendors should be red-flagged by the moderators for every member to see. This would help prevent inexperienced new reefers from buying things with false information and discouraging their attempts at keeping reef aquariums. Okay, I'll get off my high horse now... Back to topic.
All you can do is feed this thing. It doesn't require intense light. Options for feeding have already been stated. Another option is to take some cyclpoeeze with some water from your tank and some selcon. Put it in the blender and mix it up. You need to use the blender to make the cyclopeeze fine enough for the scallop to eat. The extra vitamins in the cyclopeeze and selcon may help you find the elusive "secret recipe" required to keep them alive. Please post info with your findings. No secrets.