proper nutrients

I'm planning on growing 8 plants dwc under 1000 w hps. I'm a nube to the growing world so I went to the local hydro shop and this is the list of nutrients the "professional" clerk suggested for optimal growth. Micro,bloom, Cal-Mag, atami, kool bloom, Flora nectar, flower dragon, and nitrozime foliar. How does this list sound? If anyone knows a better nute combination please let me know. By the way, I think that clerk works off of commission so he probably gave me a huge list so he could profit. Suggestions greatly wanted

If you don't mind i would ask : if you grow more plants in one bucket do you need to add more nutrient strength to it? Like if you have one plant in one bucket and you have 1500ppm for two you would add 3000ppm?