Veggie filters out of fashion, produce HS Gas, require maintenance, root pruning etc., gee, you would think someone invented a filter system that's self maintaining. I venture to say there are more fly by night gizmos being promoted to the gullible Koi-in-a sterile looking pool crowd than any other suckers in any other hobby at any other time.
I think Veggie filters are neat( 60's term), were never intended for the only system on a Koi Pond, naturalize any pond view and grow terrific Koimatoes. When the rest of the world starves, my Veggie filter will feed the neighborhood!
