well when i first started out with saltwater i got a 12 gal aquapod, the one thing i really wanted to have in it was the pom poms, xenia, and every time i put one in the tank it would do the same thing to it, melt it, kill it what ever, it would be gone in a few days, i was shocked that everything else lives and they die. in december my hunney got me a bigger set up with a MH i transfered all my stuff over to the bigger set up from my nano and decided to give the pom poms another try, fingers crossed, they are doing wonderfully, even multiplying FINALLY. someone told me to add iodide in it so i keep on adding that stuff in, so not 100% sure if it's the light that keeps it alive or the iodide, but try it, maybe it will work for you. and good luck!!!!!!!i know how you feel i've been there....keep us posted...