You should have enough light to have a go at some of the high light plants like glosso. You can but try and see. plant it in small clumps so it gets as much light as possible and try and get stuff that has been grown submersed because it would be a big shock otherwise at this time of year. Other plants that would possibly do OK would be Sagittaria microfolia, Echinodorus tenellus tenellus, E. tenellus latifolius, E. tenellus parvula or hairgrass particularly if you can get the shorter variety.