It might be over a week old - they stopped liking it the last 4 days. I tried adding more scratch and peck and then also mixing some dry in for better consistency on the plate. They just pick at it and Leave lots of uneaten.
I read that at some point the stuff loses it's nutritional value - maybe this batch is at that point. Which is why I was considering starting a new batch. I didn't let it ferment for the 4 days initially, just 1 day.
Here's a good site that will answer all you questions.
http://tikktok.wordpress.com/2014/04/13/fermented-feed-faq/