HI Ed
Yes those temperatures are inside the greenhouse I check temps throught the day and as soon as the temp starts to climb around midday I do same as you by opening all sliding doors front and top
so air can circulate I followed instructions on seed packets with temps of 60-80F
Also Yes the empty cells are where seeds didn't germinate I sowed 75 seeds in that tomato tray which was about 5 seeds to each cell, the peppers tray has 20 seeds one in each cell and the chilli tray has about 50 seeds.
I got a feeling the the compost I used has buggered things up because it's not good quality seed compost it's only about 2 quid a bag which I use for mixing with soil for potting my Roses and Fuchsia's compared to other stuff I seen for seeds which was nearly five quid a bag.
Anyway Ed Thanks for your continued help and advise I really appreciate it because it's my first attempt at sowing seeds I most certainly won't give up I'll try different compost once this bloody virus lockdown stops so I can go to a garden centre, in the meantime I'll keep you updated ok.
cheers
Tafy