Apex magazine is running a flash fiction contest called Steal the Spotlight. The word limit is 250 and there are five categories: sea monsters, black dog/Hellhounds, banshees, science experiments gone wrong, and demons. You can enter once per category. Every entry wins a back issue of the magazine (ebook). The winners of each category will have their stories published at 6c/word and will get a free year’s subscription. The deadline is October 15th. Full details here.