Whats up guys.. I used to be into ponds a long time ago.. been a good 15 years since I left the hobby. I was basically inherited a 850 gallon pond. My friend bought a house and he wants me to set it up for him. It will be a goldfish/koi pond. I'm curious on what pressure filter you guys are running/like. I've heard very good things about the pond guys filter. Any thoughts on this one with the pump? .