I'm also no pro.

However I think 70deg may be a touch low.

A fan blowing in the box, both bringing in new air as well as circulating air around the plant will help a lot too(removes outgassing from the plant as well as bringing in more enviromental CO2). I added one last night and noticed improvment within a few hours, not only on how green but how quickly the new set of leaves are forming. I suspect they will start expanding quickly tomorrow, yet I could barely see them last night.

Otherwise your's looks a lot like mine should in a few days. I've been doing 40 hours on and 8 off (turn off before bed every other night). I'd have been doing 24/7, but I want them to have some "sleep" time too. :thumbsup: