I have potting my seedlings sieved compost and I’ve noticed that the compost is growing in colour like some algae had grown on it. The seeds have still germinated but I’m more whether it’s to humid in my plastic grow house.
Also the soil doesn’t seem to dried due to it being warm in the grow house
So far I’ve grown so much in there and planted them outside already with issues. It’s just a question that’s been bugging me.