Hey, your diary list you are feeding them the dry amendments every week at the rate of 54ml/l guessing this is 54 ml per pot or over all between all the plants.
Typically dry amendments are feed one every 3 weeks, I did weekly feedings in my blue Cindy journal and it turned out ok but did not fully grasp if it made all that big of a difference.
One other note on dry amendments they normally have good amounts of calcium in them but not a whole lot of magnesium. I would look at the ingredients or formulation of whats in that one and try and determine what its comprised of. I use Gaia Green and notice my plants need a Magnesium top up at least twice in the grow. Helps green up the plant a lot.
Also the extra calcium in the dry amendments will also keep your soil ph a bit lower, could try 6.4PH for a week or so to see if it helps. epsom salts are great cheep and fast way to introduce some magnesium into the medium.
Best Of Luck!
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