I flushed my 2litre of pre-fertilized soil (plagron grow mix 10-14-24npk) with about 5litre of 50:50 tap/rain water and mixed it with about 3litre coco.
Additionally I have a 80:20 coco/flushed soil mix selfmade jiffy and placed it on top of my 7litre pot. Cling film for the humidity of course ;)
I hope my seed can take the flushed hot soil mix.
I’m going to upload more pics as soon as the seed germinates. Looks messy right now, my apologies.