How make perfect start? GHR Tripart soft water

Please make sure the grower whose advice you take actually exists... there were two fake accounts that had been created and which now have been removed. At this point, only myself and m0use are affected. The answers below that look like m0use and myself but are in fact removed - clicking on the name will take you to a blank page. Click on MINE and you will see I truly exist... I do not know the answer to your question and hope someone else can and will answer it for you.

It's probably half dead already, live and learn and start another in a SMALL pot and let it grow until the ROOTS hold all the soil together before you POT UP to this final size. It will help a lot. In the first 2 weeks they don't really need nutrients generally.

It's also a little early to be feeding nutrients, could be either

Clones need a humidity dome, seedlings with leaves don't. Despite GrowingGrannie wrongly advising that seedlings do yesterday, but that's nothing new for her to advise in a way that will have a detrimental effect on grows. Good luck there.