In my setting the Warmouth like heavier / darker cover than Green Sunfish. They use caves / hollow logs as soon as they pass metamorphosis. Ideal Warmouth habitat I see have near complete surface cover provided by a combination of submergent and floating vegetation. A given Warmouth will establish a route in what likely looks like a cave system where the fish moves through like a mole picking of prey that come out of the heavy vegetation lining the route. Same fish will not pass up a live cricket dangled at water surface over or near the tunnels. Most Warmouth I catch are in less than 6" of water although the monsters will be deeper.
Spawning typically shallower that Green Sunfish as well and less likely to nest in close proximity to colonial nesting Lepomis spp.
The behaviors and color changing capacity of Warmouth are a big part of my interest in them.
