I started with fluorescent lighting and was not liking my results so I switched to a 600 MH for veg and HPS for flower!!! I have good air exchange but my temps are getting up to 86 middle of the day!!!!!Dropping to 75 at night time !!! Again I have good air exchange and this is a soil indoor grow, I also have an added co2 bag!!! What should my ideal temps be ? Do I need to run a portable A/C unit?