Pond Boss Forums AERATION Should I aerate? When should I stop aerating?

MFork - I would stop aerating in mid November. By mid November in southern IN your surface water temps should be around 44F - 48F. You can verify this by taking your own water temps. At these temps and with continued cooler and windier weather your pond will be able to easily mix completely top to bottom on its own. By late Nov or early Dec your pond should be in full turnover condition (homoiothermic) and completely mixing whenever you have decent wind action. Surface water warming during warm days during this period will be short term and recooling and convection currents will occur at nite.