I've been following this thread and thought, what the heck. I put a dose of KI in my kalk container. The container is 2/3 gone and I believe I see an improvement in the blue shrooms. Amazing. I stopped dosing iodide after reading some negative stuff about it. I had been maintaining no more than .006 ppm. I will keep you posted on any continued improvement. I might add I thought I saw some minor improvement before I dosed the KI. This recent improvement is significant however.
Thanks!
Mark