This week was really stressful, one plant in particular looked like it was really dying and ALL of the others were starting to droop too.
I was so stressed about overwatering after the last seedlings all failed I had been misting them regularly and adding the tiniest amounts of water but they were going downhill rapidly.
I then had a thought....... maybe my Coco Cana Professional is inert / has no nutrients at all so I mixed up a very weak solution of feed and Hey Presto they perked up in less than 48 Hours and started growing like mad again!
HURRAH!