Two more cents'...
Claus Christiansen mentioned in his talk that many of the plants we have
will do well at higher temps, as long as you understand that *their* life
systems are going to be operating at higher levels as well. What that
means is, more (higher intensity) light, more iron, more micronutrients,
etc, if you want to keep them at higher than recommended temps. Also,
plants love water changes -- you cannot do them too often, and they should
be larger/more frequent at higher temps. :)
Julie <><