i herd this before when i had to take a class for getting busted with weedKISS
keep it simple silly
they may not all be ruined but damn, a heating mat and a heater? im pretty far up north and i wouldnt be using either in this hot weather. i never use a heating mat for seeds. just place them between a wet paper towel. place it in a small airtight dark container like an old washed out snus or chew container. place it in a warmer area you dont need any heat unless it's in a cold area. i just place them up in a closet. after a root starts, place them in the soil.so im in the room looking at the 51 seeds inprop tray when i notice ol buddy has the heating mat full balst a heater blowing and a 2ft t5 ballast holding 4 bulbs rifgt on top of dome. grrrrr so the cubes were 100 degrees for at least two days. are the seeds ruined?