i bought a xenia frag a few months back and it has now spread onto a few differant rocks more like 4 ...i put some in my 10 gallon wich is doin great and soon after put that piece back in the 55 since it had already started on 2 rocks in there aswell....so now the xenia in the 10 gallon looks great still pulsing away however the xenia in the 55 looks good besides the fact that it doesnt pulse at all and like i said im talking about on a few differant rocks....whats goin on??? ever happen to anyone else??