Small yellow spots on leaf

If it's soil That PH range is good Also idk if you're using nutrients But if that soil in anyway holds EC its far 2 soon for anything but water And if its PH u worrying about it doesn't come into play with organic properties unless they mineral nutrients I jst checked wat u using Pal. Them nutrients don't require PH'in alga grow gives a PH of 4.8 for me. Again u don't need to wry ABOUT PH. I would say if using sugar Royal and so on. Or anything not organic to feed apart from your alga grow give ur core nutrient separate from the others. And if tat soil is preloaded u need to just give water, power roots pure zym. When u get a ph issue with plagron its very hard to fix. I've a had a few plants go weird on me but on reflection it was me adding mineral nutrients like terpinator tat sent it into a ph issue. Look up plagron products details on the alga grow. It doesn't require Ph'