Converting a Copper Pot into a Fountain or Pond: Coating and Heat Concerns

Sealing the Copper

Coat the interior with several layers of marine-grade polyurethane. Lightly sand between coats. This prevents copper leaching and protects the pot.

Heat Warning

In Central Florida, a metal pot in sun will overheat—lethal to fish. Place in shade, add a bubbler for oxygen, and consider a chiller if keeping fish.

Water Treatment

Use a dechlorinator that removes heavy metals (e.g., Seachem Prime) for top-offs.