Copper Fountain in a Fish Pond: Safe or Not?

Copper leaches into water, accumulates in fish livers, and kills over time. Risk depends on copper surface area vs. pond volume.

Mitigation:

• Line copper tubing with plastic to reduce contact.
• Use only in very large ponds with minimal copper exposure.
• Best: avoid copper entirely if fish are present.

Copper sulfate treatments are different—controlled, temporary doses. A fountain is constant exposure.