Tee, what kind of succulents do well in such low light? Completely baffled on this one.....
At Home Depot, I take care of the houseplants sold at my store. We only have the fluorescent lights that are mounted from the ceiling, 20ft(!) above the hanging plants. Plants that might be applicable, and adapt well and can be grown continuously are pothos, philodendron, Rabbit's Foot fern, hoya. But if even pothos is showing light starvation, I don't think anything will do better without addressing that problem.