Help, i need clarification

Okay so in total, 2000 watts of Metal Halide. This plant under 600w light.
Rockwool cubes. Shiva skunk. 200ml feed of mix solution twice a day once morning once night 18 hours on 6 off. Ph 5.8-6.2. Feeding GH nutes 12 ml grow 6ml micro 3ml bloom.
Top feeding. Waiting for flower to begin drip system off of reservoir. Anyway pics are here. Is this manganese or magnesium?

Nitrogen toxicity, maybe ?? Back off with the nutes for a while...

slyone said:

Nitrogen toxicity, maybe ??

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Guaranteed. Where did the OP get the ratios to mix? WAY too much Grow! OP, check the Nitrogen content on the micros as well. The read the label for instructions. They are on there.

hotrodharley said:

Guaranteed. Where did the OP get the ratios to mix? WAY too much Grow! OP, check the Nitrogen content on the micros as well. The read the label for instructions. They are on there.

Click to expand...

I know it's a bit late, but I am confused and the browning of leaves seems to continue even though I have halved all nutes and regularly flushing now. Here is the feeding schedule, seems to be frequently asked online and i remember using this for my last grow no problems (same circumstances) this is all per 3.4 litres.