"RichToyBox" wrote in message
...
The zinc that is used in the galvanization process is fairly insoluble at
the normal pH of water, and therefore should last a long time. If the
zinc is dissolved, it can be harmful to the fish when the levels get high.
If the bottom is not kept clean, layers of rotting leaves will become
acidic, the galvanization will be removed and the metal will corrode.


What about the other side of the tank that is on contact with the ground?

A