More light....
I've had blue dotted red shrooms for 6 months now... I had them under PC's and now MH..
I have a 250w XM, and 110w pc, of which I am only using 1 55w actinic... The red shrooms almost glow under my lighting.. I have them half way up the tank, and they are thriving....
Who knows, it just may be me... But I think the stronger the light, the better....
Just my experience,
elvis