My TF-100 today results:
FC - 2.5 + CC - .5 = TC - 3
PH - 7.1
TA - 80
CH - 420
CYA - 70 I think, this is a hard one to be sure...
Water is perhaps 85% clear (been clearing every day since I started attempting BBB). Filter cleaned Sunday, showing good.
So I am thinking add a little chlorine...