pqueen

This week I was a little worried because some leaves, especially the older ones, started to dry and others turned faintly yellow. A friend told me it could be lack of nutrients, which makes sense since I used substrate from my own backyard. Despite that they grow a lot, every day new leaves are born and now a few things near the stem, which should be good. They are having about 8-9 hours of very very strong sun. He advised me to switch to a composition mixed with earthworm humus and bone meal, which I did today. I hope they are okay. Does anyone have any tips? Cheers