In the spring lots of pollen and floating stuff . This is what I use to help , got this from the swimming pool guys that use a nylon stocking to help with fines
Nice
I use the same paint strainer bag only its the 5 gal bucket size. I have 5 of them filled with about 1.5-2 gals each of fine chicken grit, zip tie the bag shut and they are sitting on top of my filters pads in 55 gal barrel. Its the next best thing for fines that I could come up with without having a S&G filter. They work great and are easy to rinse out in a clean bucket of pond water.
Happiness is adopting a mutt and my pond is FULL of Happiness....
Deb
My pond
https://youtu.be/PR3Q2MInsQg