Hey hey, servus!
I couldn't see the clones exactly but I can give u some tips. Temp with 77°F is good but try to increase the humidity at least up to 65%.. keep the Dome wet, not the plants!
U can spray the plants once a week with beneficials but try to keep the plants dry and the enviroment wet. I open my Dome once a day to provide fresh air..trim your leaves to half the size, u want to build up roots and no photosynthesis.
How's your light schedule for the clones? 18/6?
Hope this will help a bit.
Have a good one and good luck.