Its expired. Aug 4, 2018 it was made. Aug 4 2020 expired
ah hell :D I assumed from reading that copy/paste that was the born on date.... Rereading that, it is what it says. Are you sure?
I'll have a bottle of Great White to try out on Friday, I'll have to make sure that's not expired as well...
EDIT: Now the water level is a little more than an inch below the netpot, for a while I was having struggles with getting the roots into the water and had the level closer to .5" I'm certain this was at least part of the problem.