Do I Change Anything during Flowering?

What do I need to do different during flower period.
More water, less water....
How much nutes?
PH different?

lights and switch to a bloom/flowering nute with high PK and less N

12/12 for lights

no extra water

and PH should stay the same

Maintain your vegetative growth formula for the week after changing to 12/12 and then gradually change over to your flowering ferts when you see pistil clusters begin to form. When you switch you're in the what's called the stretch and the plants are adding structure rapidly, faster than normal veg growth. You MUST continue to give them a nitrogen rich food during this time or the leaves will prematurely yellow.