white corn meal conversion

[chrisl]

I started on Saturday with 50 lbs of white corn grits, 40 gallons of water. Boiled the water dropped in the corn grits slowly. I simmered the mash for about 2 hours and it was sticky so I through in some malted barley and some gluc to loosen things up. I let it drop to 145 degrees I then added 7 lbs of cracked barley malt and some gluc. I stirred it up good. That was about 7pm last night. I woke up this morning and all I have is about a 1/4 inch of clear liquid on top. I did a iodine test and still dark? What the heck did I do wrong. Do I start over or let it sit longer. Thanks for your help