If you haven't already, you should look into an intake/exhaust set up. I use 4 pc fans for my file cabinet, 2 intake and 2 exhaust. That keeps me around 77 - 85. Oh, and a fan to move air will also keep your temps down.
Pics from day 5 - 8
A couple of them got a little too dry :( I missed a watering or two apparently. Using this odd choice for a medium, I'm having to really just guess on when to water. Around 3 times a day seems to do the trick.
I finally got them transplanted into the ghetto pots...
Day 4
Just some pics.
Not much news this time around. Still going strong with 18/6, the plants seem to be doing pretty good. Most of them have multiple roots coming from the bottom of the rockwool already so I may have to transplant them sooner than I thought.