My experience with L. ommata has been the same as Michael's. They seem to be less shy of people than pygmy sunfish and are less secretive. They are not as likely to dive for cover when a person walks by. Still, with 6-8 or so in the tank, you are likely to only see one or two at a time in a well-planted tank. In a sparsely planted tank, you will still only see one or two with the others hiding in the corners or behind the tank heater. Males seem to be more secretive than females, making me think that they may be a female-dominated species with the individual or two commonly seen being the dominant fish.