Quote:
Originally Posted by
jhamil4ton 
With the dimensions you gave on the other thread, it looks as though your volume is only 480 gallons when full. With the number of fish you show in your pics, I would be inclined to think that you might have lost your koi due to being massively overstocked. How long did you have your filter off when you were changing it out? Did you have any oxygen going to the pond? I would worry that there was too little oxygen to support that many fish in such a small pond.