Keep them in the refrigerator (the BSF) They last longer, lol. And feed off the dark looking ones first (unless they are obv. dead)
Fresh out of the fridge they don't move, but they warm up quickly. Now..Smeagol won't "hunt" them, but he will take them from the tweezers. He won't even hunt the Dubias unless they run. And they promptly play dead when he is around.
But hey, its all very amusing and entertaining![]()