What's this mean?

[damanc]

So now I'm in week 5 of flower and noticed there's a few leaves turning yellow with purplish brown spots and a few other leaves are slightly lighter around the edges (attaching photos 1 and 2). I also have some leaf curling mostly at the tips but a couple leaves are curling like claws. One plant the leaf tips are turning a dark color like photo 3 which could possibly be normal for this plant. I'm using Lotus Nutrients Bloom, Boost, and CalMag all at the recommended doses. Although it says to stop using the CalMag after week 3 I forgot and kept using it so that is what I think the problem is but not certain. I did stop the CalMag yesterday during watering. I first noticed the leaves last week. Can anyone give me any info or suggestions? Thanks..

 

[VaSmile]

Thanks for the information. So if I flip is it ok to use a dehumidifier for the humidity? And what's a good way to raise the temp?

Crank your lighr up

 

[Phytoplankton]

So now I'm in week 5 of flower and noticed there's a few leaves turning yellow with purplish brown spots and a few other leaves are slightly lighter around the edges (attaching photos 1 and 2). I also have some leaf curling mostly at the tips but a couple leaves are curling like claws. One plant the leaf tips are turning a dark color like photo 3 which could possibly be normal for this plant. I'm using Lotus Nutrients Bloom, Boost, and CalMag all at the recommended doses. Although it says to stop using the CalMag after week 3 I forgot and kept using it so that is what I think the problem is but not certain. I did stop the CalMag yesterday during watering. I first noticed the leaves last week. Can anyone give me any info or suggestions? Thanks..
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I wouldn't sweat the three finger leaves, they look like very old fan leaves, fan leaves eventually "wear out"". The purple color is more than likely a phenotype. I do see a little clawing on the third pic, but nothing too bad.