I am new to this forum but have spent a lot of time on the net researching ponds. I have always wanted a pond and when I bought my house 5 years ago, I got right to it with a preform 150 gallon pond. I hand picked 3 goldfish for it and put in black empress waterlilly. Fast forward 5 years. I have rebuilt the pond 2 times (1 preform and a liner). Still it was too small. So I dug it up 6 months ago and cut out 16x14 feet of my patio. I am in the process of building a 16x14 pond 3.5ft at the deepest point. My fish are in an aquaponics system in my basement, in my original preformed liner, along with 16 goldfish and 20 "roses red" minnows. I am happy to be here and look forward to learning from people here, and sharing.