Quote Originally Posted by SnaFuBAR View Post
Brick and concrete raise the alkaline levels of the water, which, for the majority of decorative fish, is harmful.
Oh ok, yeah, ponds here only have hardy fish, and there usually never large, like gold fish, though I did in a large canal by the city after a flood, the small damn/bridge went under water, which was concrete, and had concrete rocks with fencing around the shore to stop erosion, but anyways it went about a foot underwater, and as it receded the small walls to keep people from falling over created a small lake, trapping these 3 foot long fish, me and my dad grabbed some plastic bags (yay pollution actually saved some lives) and we hooked them with the bag and flung them into the water, sort of reminded me of discus.