Yeah I started this system with two - 80 watt pumps.
It now has 2 - 110 LPM pumps on it. It's about 60 gallons of water, and I've been using FloraDuo Expert recirculating (To a T with essentially no issues after the initial 4-week recovery from sulfur burn caused by dealing with powder mildew)
The tea went through a sock - there was still some gunk in the system but the filters on the ball valves took care of that fairly easily (Except the one filter that was ripped by the massive 1800 GPH pump).
They now have.... 5 - 600w and 3 - 400w lights on 6 plants lol.
Plus the flood table and soil plants upstairs (1 - 1000w over 6 bushes; 1 - 1000w over 15-18 (Who even knows when you have this many lol) SOG-ish little bushes and 1 - 600w vert around like 15-18 little SOG-ish bushes plants in soil circled around). The 1000w'ers are run in line with each other through Magnum or Raptor style/sized hoods with a water chiller on a 25 gallon reservoir with an 8" Icebox heat exchanger.
Essentially...I learned to use an aero cloner and had way too many fuckin plants to know what to do with. I made shit fit.
Also; I'm legal.