This is first hydro grow, bagseed, right now under 12/12 250w hps day 45.
Plant is about 24 inches tall.
Using HG flowering formula bloom max fertiliser measing 420 ppm, i tried to go full strength and the solution measured 600ppm and the plants looked like they were burning but that was 20 days ago.
Room temp is about 80 degrees, light is about 12 inches from tops.
Too many plants in too small space, didn't expect all clones to make it but they did. 9 plants in rubbermaid.
In the pics you can see pistils drying out prematurely and the leaves are messed up, you can see the yellowing, spotting, drying and curling up.
Also have a slight spider mite infestation.
From the diagnosis pics it looks like a ph problem magnesium deficiency. I changed reservoir about 4 days ago but i don't really see any improvement.
would anyone know what the problem is and how to solve?