Any non-photosynthetic spp. like sun, gorgonian, & carnations (as well as Hawaiian feather dusters) would do fine in low light situations, especially if some flow is directed there &/or you target feed them. My feather duster hangs upside down in my cave 
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If you see it, can take care of it, better get it or put it on hold. Otherwise, it'll be gone & you'll regret it!
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