Agree with ewest that gams are over rated for mosquito control.
However, in some cases they make up for it by being able to survive in warm, shallow ditches that most other fish can't.
I can imagine the average pond owner would find it tough to locate other fish and insects for mosquito control. However, finding gams is not a problem.
I agree that even FHM are probably better predators than gams, but their larger size make them irresistible to passing birds, snakes, and bullfrogs.
In typical seasonal mosquito control problems, the water is devoid of most life, so gams would have to rely mostly on mosquito larvae.
Are gams the most efficient mosquito larva predators? Probably not. Are they the most practical in the SE States? Probably so.
