The incredable shrinking pulsing xenia

[GoCougsKev]

I had some pulsing xenia in my tank for several years and it was thriving. It was almost like a weed. I had to thin in out every month as it was speading like crazy and getting really thick. Then, one year it all starting to slowly shrink. After several months, the xenia looked healthy except for the fact is was about 1/8 of an inch tall. It all continued to shrink until there was just a 'melted' blob on the rocks were it used to be and then over time the blob went away. I hated the stuff over time, but now I miss it! What went wrong???

 

[ReefLogic]

I would say it is because you are running much cleaner water now. I know when my water is "dirty" or nutrient rich I had a booming xenia.....problem I guess.....then as I added more and more to filtration I started having issues keeping it. Towards the end I had a zoa only tank with nutrient rich water and xenia in the sump and back wall growing out of control.