DWC nutes?

So I'm looking at making a purchase of nutes. Here's my set up and the list of nutes I was lookin at.

4x4x6 (scrog grow)
400cfm vortex fan
6" aircooled hood
Veg: 400w MH
Flower: 400w HPS
(2) 5-gal DWC buckets
3" netpots
rockwool cubes
hydroton
45w 53lpm air pump

I was thinking:
GH Flora Series 3-pk qts(Grow,Bloom,Micro)
GH pH Up & Down
Dutch Master Gold Zone
GH CaMg

Ill just be leaving gallons of water out overnight.

Any recommendations for germing?

I was going to buy the flora series but decided to buy these...saves alot of money and not paying for water.

http://www.amazon.com/gp/product/B000COBT54/ref=ox_sc_act_title_10?ie=UTF8&psc=1&smid=A1TQQ4ZHI2444B

http://www.amazon.com/gp/product/B000CO7U02/ref=ox_sfl_cart_mbc_s1?ie=UTF8&psc=1&serverToken=Obidos

You have a PH meter ?

I'm getting this one..after much research I decided against the cheaper ones.
http://www.amazon.com/gp/product/B004G8PWAU/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=ATVPDKIKX0DER

I also ordered the GH pH Up & Down that you have on your list.

I also ordered this for water Temp..EC and TDS
http://www.amazon.com/gp/product/B000VVVEUI/ref=ox_sc_act_title_2?ie=UTF8&psc=1&smid=A3IKE3LRRQSHTJ

Would you mind telling me what water pump and air stones you are thinking of getting ?

I still haven't decided on which to get yet.

Thanks

This is my first real grow, using a dwc system in 5 gallon buckets. I was given the fox farm trio (soil). So far so good no problems as of yet.

Good buddy of mine uses gh though and things are going great for him its all in how you use them.