Well I can take the half a glass top that I have on the tank off so that a little more light gets to the xenia. I put it there cause I had originally thought that the light was too much for my mushrooms. I have a 96Watt power quad on a 10 gallon tank.
I also think I need a new bulb cause the one I have is probably past its prime.
I will try opening up more light to the zenia.
However even thought it was not until last week that I saw an issue occur I have not had an abundance of growht in my tank. My bubble has grown some but he was the first coral. My polyups have multiplied but not by a large extent and the xenia has gotten a little bigger but nowhere close to the growth that you and most others talk about.
So I am not sure what I am doign wrong. Maybe it is all the lighting??? Who knows. I jsut think keeping up on my PWC
will be the best thign for my tank