Algae problem

[HorrorShowRot]

Allright I have way to much algea in my pond. It is in a semi shades part of the yard but I dont know why there is so much algea any ideas? Also there are 2 frogs aswell as 10 koi and a crayfish is in there aswell.

[PUNISHER VETTE]

I'm not an expert but i do know you're going to need to provide way more info for the ones who are experts to give you a proper diagnosis.

Size of pond being the most obvious one i can think of.
Filtration?
fertilizing?
What % of sunlight?
any plants in there?
...

[smaug]

I gotta know how big this pond is?What filter system it has,how long has it been in operation.How big are the fish?

[smaug]

Double post I know.Shoot me,,,,,,,,,,,,,,,please.Anyway,has your algae problem gone away?I am a pond nut and would love to here more about yours.