Before we get any further:
At this point, you are going to want to SUBTRACT some things. Your heat load in that room for starters, which is going to make any other problems you are having much , much worse.
Bone meal will help buffer pH at a higher level, and will add a lot pf Phosphorous to your grow. But you have too much fertilizer already from teh loosk of thigns, and more fertilizer iis the LAST thing those plants need right now. So don't add anything until we know WHY the plants look crappy.

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