Pond Tour: Ray Abell's Pond - Pg 6
Ray built himself a beautiful greenhouse to house his prize koi in. There are 3 pools inside, about 15 feet deep. The largest is the length of the greenhouse, about 35 feet long by 10 feet wide and the two smaller are each around 10 feet square. All measurements are approximate.
A lengthwise view of the greenhouse.
His biofilter with spray bar that he made with several tons of rocks. It is about 20 feet long.
His prize fish are very happy getting their exercise in these pools as the water is clean and deep.