Auto Test German outdoor Summer #2

Good day everyone, 20.06. We are starting veg week 3, did add some support, it was good to add calmag. Did fim her, or at least I tried, had pre and after photos, but somehow ii did fckups again, they are lost, will retake an after picture as soon as I get back home again. 22.06. We are having a lot of rain these days,I will probably flush the pot and reservoir with 10 l of fresh fertilizer solution at the end of the week. I think I am using the wrong substrate for these wicking pots, coco can't hold nutrients so it's either washed away with the rain or it's building up salt in the top layers. If I am growing another auto in these pots I will probably go for a different substrate and some kind of long time fertilizer. Need to think about it, I don't want to use peat, it's just lignite with less steps and I don't really want to use animal remains based fertilizer, maybe I'll grow on horse droppings, need to think about it.