Mr. Stinky
Member
but i will add that i have seen pictures on this site of RW cubes sitting in a puddle directly ontop of a seedling mat. so whatever works. google "seedling mat". since i use the perlite, i sit the tub on it. before i ever had a mat, i used smaller containers, and left them sit over the pilot light spot on the stove with the hood light left on. if you have a pellet/corn/wood stove, you can sit it on there with a towel between so they dont overheat. just be careful. just tossin ideas out