Copper and zinc generated by the Aquascape IonGen pond clarifier system can be detrimental to koi (Cyprinus carpio) health.
Emily K Tucker-RetterJamie GerlachAzais CurteanKent PassinghamLisa MurphyGregory A LewbartPublished in: Veterinary record open (2020)
The results of this study indicate that ion generators might not be safe for fish, and copper should only be used as an algicide if concentrations are closely monitored.