First Grow - Hydro - Brown Spots on Leaves

[CarlosCannabis]

4x4 Grow Tent
600w MH bulb (for veg)
General Hydoponics Advanced Nutrient System (including Calimagic and Hydroguard)
Strain is White Widow

PH was around 5.5 - 6.0 prior to this week. I upped it to around 6.2-6.5 this week for better Magnesium uptake, thinking thats what it is. Ive noticed some more spots and wasnt sure if I should just be patient or if I need to be changing something else.

Also is it ok to switch over to flower at this point or should i let her get bigger??

[Qwertywill]

I dont know what the brown spots are from, however You will be ready to switch whenever. (May wnat to fix issue prior) You can do some lst and let it fill the room more, just keep in mind pending strain it can double in size