Best way to grow various strains?

Hey Gang
Just finished up my first run through, things went great. Grew 2000 watts of Sour Diesel. I am planning my next grow, and I plan to add another light for a total of 3000 watts.

My tentative plan is to grow 2000 watts of the Diesel, and then have two-four different strains under the under thousand watter. I know that different strains go to different heights, and also prefer different nutrient PPM. How would I go about this in the best way?

I could have a batch of water for the 2000 watts of Diesel, and then seperate water for the other plants? All plants are going to be put on a drip system, so I will not be hand watering. If I start this up and I find that the three different strains (besides Diesel) all want different nutrient uptake, could I set strain #1 on a timer... then I would need to go into the room, adjust the water, then have #2 get water, then the same thing for strain #3? Is that how you would do something like that?

I will be new to drip systems so how many times do the plants need to be watered per day? Any advice and experiences are appreciated.

Fuck, well i would make sure there all indica under one and all sative under the other etc... then mix up nutrients and feed em, if they dont like it, they will adapt, just dont over do it

so have resivour#1
and then resivour #2 mix the nutrients into those them water them accordingly dont make it harder then it is.

The 30 or so plants would be under the original 2000 watts I had in the room. Then I would probably throw three different types of indica under the other 1000 watt lamp. Hopefully could find a few indicas that the flowering time varies from 7-9 weeks. The Diesel took 9.5, this way I would be able to harvest some early. Anyone in Norcal? I would be getting the indica clones from one of the medical stores around here... anyone know what type of variety the place in Berkely has?