Originally Posted by SetterGuy
Also, the pond water is this weird mud color. Not sure why. We haven’t had rain for a week or so.

There are some types of brown algae. I believe they are typically diatoms.

Have you had a lot of low overcast days this spring? Sometimes bright sunshine will enhance the green algal blooms and lower light levels will enhance the brown algal blooms.

Might try a jar test on it when it is really thick just to determine the actual cause?