I wasn't sure which board that this fits but I am looking for advice on pond maintenance for lab owners.

Our 7 month old lab spends a lot of his day in our pond, he is more wet these days than dry. With that being said, we have not treated the pond this year like we normally do. Usually in the Spring, we put in Copper Sulfate and Weedacide. Does anyone know what to use to control the weeds and algae but not harm our pup? Any advice would be great... I am hoping someone else has/had this same problem too!