Agree with others that raise the intake tube well above the substrate.
Many people think filters are for picking up feces at the bottom of tanks, to me that's what vacuuming, with water changes is about.
Seqestering those large pieces only adds to the buildup of nitrate.
To me that kind of light filtration is for getting rid of tiny particulate floating loose in the water column, so if using those type filters I usually use the short piece with the lowest end of it hanging maybe only half or 1/3 of the way down the tank depth, instead of extending it low into the tank.
Or using one of those surface skimmers available these days to take water from the surface, because that's where the most deleterious (yet often invisible by-products of waste) collect.
Chunks of turds are not half as bad as the proteins, and oils that often go unnoticed at the air/water interface.
This is why most reef keepers and salt water aquarists (and some very aware freshwater aquarists) employ protein skimming into their filtration regime.
The photo below is the waste collected and removed from the water column by my protein skimmer, on my small "freshwater" pond.
As you can see above, once you concentrate the stuff that is normally invisible, it can change your attitude about what filtration is simply adequate or effective.
Below a video of it, doing its job.
2:12
