Newbie needs help with nute selection

I am gathering all my supplies for a 5 plant Northern Lights grow and have came to nute selection. I'm am going to use Ocean Forest soil and start them in small pots then transplant. I plan on buying the Fox Farm trio deal of Grow Big, Big Bloom, and Tiger Bloom. I also plan on using distilled water. Can I mix up a gallon at a time with the nutes, using their website,
http://foxfarmfertilizer.com/soilfeed.pdf
I didn't know if they would go bad or something while sitting in still water?

No expert but fairly sure u should be mixing as u use, don't keep mixed. Ive been flat out reading cause im too getting ready and im sure i read that in the last few days but hopefully someone with more experience will reply to u

people use air pumps and air stones to keep the water oxygenated , if its stagnant standing water it needs to be drained away eventually or recirculated. the distilled water is good for making clones but tap water should be ok for fertilizer solution

Ok, thanks guys. I think I'm just going to mix up the exact amount I'll need per watering so I don't lose any fertilizer. Do those numbers sound in the ball park on Fox Farms link I posted?

Go with Happy Frog Soil, avail at home depot and lowes, you wont have to add anything until it is flower time other than molases and or epsom salt.

Easy soil for beginner and it is great