2 LSD-25 and 2 greencrack

Hello @koutogianos ! It might be a starting calcium deficiency or it might be just a random damage on the leaves. Sometimes when leaves touching something they make these marks ( like the seventh photo ). If you are using a good quality soil ( like bio bizz ) you don't really need to add magnesium. Most of the times ( when using a good soil ) magnesium deficiency comes from irregular watering ( especially a light under water ). Anyway just keep an eye on it. Check your watering schedule and if you notice an aggressive progretion of the problem only then add some cal/mag. Happy growing και καλα πιωματα ! :facepunch:

It's starting to look real nice, the flowers are going to start getting bigger, I see you're already using everything correctly, just let me suggest that you have some cal mag close by, just in case the plants start needing it. Another thing I like to use is mag sulfur boost which helps get those flowers real big. Good luck crossing the finish line ! :rocket: