Brad,
I think these bloody dinos can continue living even with the slightest amount of light so I covered the tank in blankets and towels for almost 4 full days. There was NO light getting in. By the 3rd day they were mostly dead but I just wanted to really make sure and since I didn't have any sps to worry about I figured what the heck
Maybe try one day fully covered along with your 2 days of darkness. They sure are a PITA to get rid of.
Christy
