I did a search & now understand what it is, what grows in it, it takes nutrients out of the water column & it is part of the very bottom of the food chain, supposed to be a good thing to have. I have plenty of it & in some places where I don't want it. I have some white barrel bottoms that I put in the pond near the bank so that I can more easily observe the small fish, visibility <24", hoping to see YOY LMB or some big Anderson GSH. I must sweep them off every ten days, the periphyton grows so quickly.

Who or what benefits from Periphyton? Is it all at the microscopic level that I don't, see the wonderful things going on? I have never seen any fish grassing on it. MF seem to get a little excited when I sweep it off the disks. I have seen a few snails eating it, that is about it. I threw in some hardwood tree branches & it is 1/2 to 3/4 inch thick on them. It is there, never changes much nor does it seem there is a water creature that really cares that it is there. I do not quite understand its value, but I sanded my PVC anyway.

Please share your knowledge.

Thanks