Our 5 acre lake is done and structure is almost in. Our lake is 25-30 feet deep in two areas strictly due to the lay of the land and no other reason. I have read a lot about the thermocline and how it's useless to put structure below 10 feet because it will not be used. Does this apply to Walleye as well? Can they live in the less oxygenated water that most fish can't?