I have a quick question. Do you leave plants on heating mats even after they're established? I will be leaving my phals on the mats all winter due to temperature but I was wondering if I should leave my others on there too (catt hybrids, dendro hybrids, oncidium hiens57, epidendrums, epi/encyclia hybrids, zygos, one massie that for some reason likes the heating pad :S??, paphs).