How can I clear up the water in my pond without harming the fish.?

i have a pond too. i use this stuff called algaefix or something like that. its at walmart for like 6-10 dollars. it might not be algaefix, there are different kinds every time i go. basically the same stuff with different names

NEVER USE COPPER PRODUCT IN FISH POND as in one of these answers, try covering water surface with plants like water lilies and hyacinth, water lettuce, etc, any kind of shade

also reduce the number of fish, more fish =more poop=more food for algae There are algacides but you don't want to have to use continuously Good Luck

We have a 3/4 acre stocked pond that will get green algae once the sun begins to warm the water. We use copper sulfate to control the algae growth.

Some people use water plants to help with this.