Yeah. I seen a video a couple days ago of a lady talking in it showing a couple of pumps pumping out of a creek somewhere around there, supposedly filtering the water and pumping it right back in within about I'd say 20 feet from the intake. And then showing dead minnows just below from where it's pumped back in. For one thing, I know from personal experience, the type of pump that was running is not a filtration system of any kind, it would suck rocks through if you let it and they would have to suck the whole creek dry anyway and it would take a lot more than what she showed., My personal opinion is that they are sucking minnows up and killing them when they go through the pump and putting them back in the creek.