As others have said, as long as the surface is rippling from the filter you should be fine. If you're still worried my favourite option is to use some live plants. Live plants will help keep the water cleaner, oxygenated and provide lots of hiding places for the tank mates.
There are many low-care (dare I say no-care?) and cheap plants you can find at most pet stores depending on your location; Anubias, anacharis, java fern, java moss, water wisteria are just a few of the most common.
In a 10 gallon I highly recommend live plants. They can be cheaper than a bubbler and do more.