What is the downside of having the bullheads in there??
It just depends on your thoughts.
Others view them as a trash fish that take up space in a given pond, space that could be used by a more 'desirable' fish. Others love them and love to eat them.
Excerpt from Robert Crais' "The Monkey's Raincoat:" "She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."