Have you seen some spider mites then chap or do you just have loads of little yellow/white dots spots on your leaves? I can't advise on spider mites as I have never had them in many years of indoor growing, however I do and have always used neem mixed 1:1 with a wetting agent such as polysorbate! I think they actually like it because after a good dousing they prick up and look pretty lush...
Go find a thread for mites and obviously make sure you have them. All the best bruv..
I am new so please forgive my lack of thread etiquette and use of quoting posts etc, it might be wrong?
This is slightly confusing for me Dirty Mc... Are you saying that Pot Hydrox is organic? I assure you that as a pesticide it is not organic or even near to being so. I would never apply or advise this for use on any plant ever, especially during flower!