[jyl]

My grandfather had the ultimate fish tanks.

He had two cylindrical, open-topped concrete tanks sunk into his front garden. Each was appx 10' diam by 10' depth. The idea was to raise fish to eat.

Big failure. The fish ate each other until he had only a few, large fish.

The tanks sat dry for years.

Then he used to make us kids swim in there. Lowered us down w/ ropes, filled tank w/ water. Not so fun, really.

For awhile they were the neighborhood's deepest water lily ponds.

Finally they were covered up and eventually the next owner will fill them up - they are a hazard.

Hope you have better luck!