Will be helping my sister with a pond redo, will post more details on that for feedback later, but can get a 150 gal vortex SC for $385. It is 39" in diamater and 44" tall. It is a non-fiberglass version of the Cyclone 7500. It can handle up to 4000 GPH max. My question is, cost aside for the moment, would the vortex work as well as, better or worse than a 330 gal poly tank.
Both would probably have either static chamber or micro strainor on output side.
12 x 10 x 6, 5387 gallons. One 4 inch aerated Koi Toilet BD feeding settlement chamber.