Well, My first time growing Hydroponically I used Botanicare Pro Blend. and Botanicare Liquid Karma...
You are starting in a DWC system, what I would reccommend is once you have your ladies established into Vegging, you want to use about 400-600 PPM of the Grow Nutes in your res for the first couple weeks. After the first couple weeks, bump that up to around 800 PPM. Don't go too much over 800 PPM in a DWC system with your hard nutes....Also add a couple/few tablespoons of Liquid Karma to your res after you get your PPMs set.... The PPMs that the LK will add will not hurt or burn your plants, it is just a mixture of different additives that your plants will like and help them take up the Grow Nutes. Keep this up all through the Vegging phase.
Blooming:
Well you are kinda tired of just watching your ladies growing and getting big and not producing any bud... Time to change that timer to 12/12 and change up your Nute Regimen. First 2 weeks of Blooming I use a half and half mix of the Bloom and Grow blends and add the Liquid Karma as you did in veg phase.
After the 2 weeks is up and stretching is to a minimal, I drop the Grow blend and set the PPMs to 800 on the Bloom blend. Still use the Liquid Karma.
Last week or 2.... This is where it can get confusing cause everyone does differently.... some use no nutes to finish... some use full all the way through...some use different additives the last couple weeks../shrug, who is right, I Don't know.... a matter of personal preference. Personally I dont add any nutes the last couple weeks but I dont run straight water either. I just let the plant use what is left in the res to finish up.