Im interested to see what peoples thoughts on the nutrient deficiency Candace mentioned are. This year most everything went into CHC for me, including my first roth from OI that is BS. It has been growing roots like gangbusters, put up a new leaf, and seemingly been healthy. About three weeks ago I noticed it was looking yellow (its tough to tell sometimes since I grow under lights and the color is always off), and it has the same "yellow throat" is the crown that Ayreon's does. It also dropped its lowest leaf (it may have been its time) and I don't like how yellow the lowest leaf is getting. So I thought must be a nitrogen problem, so along with my phrags it got a light dusting of a 1/2 & 1/2 blood and bone meal mix two weeks ago, but im not seeing any "greening up". Is it something else? I use RO water and fertilize with "Jack's fert. for RO" to a solution of 225-250 ppm and occasionally do spot sprays with pure RO water on all the plants...are we starving them to death?