Best i.d. I could give would be red planaria. I'll answer PM's if you really need to know which shop, like I said, you'd have a tough time missing them. FWIW, I gave up on this shop for livestock years ago. Was on a long run on the Prairie Path and it's a stones throw away so I popped in to take a quick look as a break. Hope they can get it under control soon. I like to stop there to pick up frozen Rod's Food so I'd like them to be a little more professional. They've been around a long time but their reef / salt stuff always seems a little neglected. It just seems like they are apathetic about that part of their business.