How to improve my closet set up

Hey everyone, I am well researched but I wanna know what the community of well practiced individuals has to say on this. I am now working for a grow shop and have a good discount on everything. Currently running the cheapest of the cheap and would like to change that. The two leds are 75 equal vent that I bought from walmart on sale for 10 bucks a piece. The air pumps were 6 bucks a piece and the buckets were 3. I have less then a hundred in this with seeds. I wanna stop buying from sketchy people.



Basically my questions are:
1)Best nutrients for dwc quality
2)Best HPS lights ballast etc.
3)Odds and ends that make for great quality bud.

Need to know your space to know what light would suit you best. A 315 cmh might suit you by the look of it at a guess.

Get a ph pen and EC truncheon. ph down. A basic two part base nutrient.