i kept mine pretty cool, just in bright not direct light. the one time i moved them outdoors in the sun, it heated up like an oven and got some wilting. i noticed and brought them in and changed the hot water for cool and you could almost watch them stand up. temps here now are between 60 and 70, i have to say i dont like to get to tech on anything. also that ive never cloned before, but i took some advise that i read and used it. like not leaving a large leaf surface on the clone to evaporate water, and spray w/water and also leave the top off for a few in the morning and evening.