Needing advice on new set up please

I've been getting parts for a while now and decided today was the day to build it. I don't know exactly what this falls under but I'm having ph issues and I'm guessing cause I had a small rez. (5 gallon bucket w/ 3 gal of soup vol.) Ph stated falling (in flower or course) so got a 20 gal rez with 8.5 gal of soup vol. Still dropping soooo adding another 20gal rez connected via 2" pvc. (Connections as low on both as possible) and to move soup from control to rez. 3/4" line connected to a 1800l/h pump. I have one site now but may add another later down the road. I will add a shut-off to the 2" later as well. Any input welcome or thoughts/ concerns thanks!

Turned out to take 24 gallons to fill to the level I keep it. I do have a question if someone could answer. Do I need air stones in control rez? I have 2 4" stones in the plant rez none in control atm. Wondering if just keeping the line coming from the pump above waterline is enough turbulence for plant rez and put air stones in control? Thanks on advance.

Info on Nutrients...

I would put air to the rez.. Not gonna hurt..

are your roots healthy?

rkymtnman said:

are your roots healthy?

Click to expand...

Yes they look healthy and about 3-4 ft long

put the finishing touches on it and call it done for now. Will add a top off bucket with a float and a 2" cut off valve next week or so.