I do molasses/sugar fermentations using Fermaid yeast supplements, DAP, and a calcium Buffer against pH crashing. I do a second supplement/DAP/calcium/molasses/sugar/water addition at 1/3 sugar depletion of the original start. My fermentations will finish in 3-4 days at 90f, 4-5 days at 80f. You really shouldn't need or want to aerate after fermentation begins as oxygen introduced will reduce your yield because the yeast will use that for other efforts than ethanol production. I would be curious as to what the pH is now, and the quality of the supplements as a sugar wash is nutrient poor.