Let me throw some general things at you based on what I’ve been doing:
You need to decide on what type of hydroponic system you want to run, DWC, RDWC, bubble buckets etc.
If doing a DWC I would first recommend you NOT use buckets. A 5 gallon bucket with a 6" net pot in it, plus 2" of space to the solution below it means that you can only have 3 gallons or so at best in your bucket. Add a basketball sized root ball and you will be servicing all of your buckets daily. A tote that holds 15 to 30 gallons is a much better alternative.
RDWC you could use buckets but recommend a large standing reservoir, outside of the tent.
Don’t screw around with heat management and buy a chiller. (Water temps have to be below 70F)
One plant per tote.
You cannot run too much air in each bucket. I use an 80L/minute pump for one tote.
Water that is either below 100 ppm from the tap or R/O.
Do not mix and match nutrients. Stay with one line if you can.
You are going to need: net pots, hydroton, a decent PH and TDS meter. PH up and down. Hydroguard or similar.
I would also suggest you set up your system and run it, free of plants or nutrients to make sure everything is doing as you want.