Could you provide more details about your setup?
i.e what (substrate, live plants, what equipment your using, etc etc.)
when asking for aquarium advice providing details is key.
It does sound simply like loose debris and increased circulation should help. do u have any type of fish that enjoy re-arranging things or stirring up dirt? if its sticking that much to no prevail it could be related to water quality, try observing any changes after a 15% water change.
I have kept EVERY biotope of aquarium including some of the hardest known aquarium creatures such as Blue Ribbon Eel's.