I think you are wasting your time with fermenting them only to rinse them off. You should not be rinsing of the fermentation, that defeats the purpose.
Chickens can eat whole grains...it is not hard for them, but I like that you do grind it up some because that will help prevent them from picking out particular grains that they prefer and not eating a little bit of everything. This picking out and only eating certain grains is a problem and can cause them to not get a complete diet.
I am not sure yet if the grains you are using are making a complete diet...I am going to work on that today.
I am also not sure that you are mixing the right amount of Fertrell in each day.
Fertrell says you much mix 60lbs into 2000 lbs of feed/grains.
I broke it down really quick like this:
View attachment 1531091
Do you have a scale?
Before you start your fermenting process can you weigh the amount of feed you feed per day and tell me how much it weighs.