Armoire Grow Questions

Hello fellow RIU growers. I am starting my first grow in an armoire i have. Let me first start off by saying this is ALL for personal consumption as I am tired of purchasing bud that hasnt been grown/cured properly. I will be putting the armoire in my master bathroom as it has been mostly gutted awaiting a remodel but a perfect place grow some buds in the meantime. I live on my own but am trying to stay as stealthy as possible.
So far i have gutted the armoire and now have just the shell which measures 3'wide 1.5'deep and 6' tall= 4.5 sq ft.
I am painting the inside flat white sometime this week.
I am ready to order my supplies and was looking for some feedback on what you think before i order.


250w cooltube with digital ballast and hps/mh bulbs
6'' carbon filter
440 cfm fan
General Hydroponics GH4120 WaterFarm
6'' duct line
floor fan
ph up and down
some type of thempmeter, ph meter, humity guage and nutrient meter. was thinking about "nutradrip tri-meter"


This is my first grow and am trying to make sure i have everything to as close to perfect as possible for the best yeild in the end. All feedback/questions are greatly appreciated

What do you mean by nutrient meter? Do you mean a TDS for ppm?

What do you plan on for nutes? Don't forget a timer for the light. Have you given any thought to building your own DWC setup?

That GH4120 is questionable, the reservoir is clear, wouldn't that mean that light will penetrate your nutes and cause algiee ( God I forgot how to spell it. too stoned, drew a blanc ) or slime?

For nutes i was planning on using foxfarm.
The waterfarm gh4120 is new to me, my friend swears by it so i figured id give it a try.The ouside reservoire is a solid color so light cannot penetrate(its just clear in the pic so you can see both buckets)
As far as timers and other smaller misc things i have in the garage, i wa just looking for feedback on the items i need to order

Had a sneeky suspition it was. ok, looks like a nice system then.