Hello All

My pond is 5 feet in diameter, with a maximum depth of 22 inches.
This seemed to be the sort of size indicated on my pond liner instructions.

However, I recently read that a pond of depth less than 3 feet is
insufficient for fish to survive the Winter when the Pond freezes.

The pond was created this year, it contains 6 goldfish.
Please could anyone advise?

Regards Al.