blue sponge help

[Mishikal]

I have not been able to really find any good info on blue sponges. I have one that is slowly dying. I have had it for about 6 months just fine then all of a sudden one day it started to get white around the rim of some of it. The LFS said to take a razorblade and cut off the dead white stuff.

Should they have low, moderate, or high light? Is there anything I can do? I just don't see anything hardly about them. Maybe I'm looking in the wrong places?

 

[bradreef]

I have usually never heard of these doing good on a long term basis.

 

[lizardarm]

i've never heard of the blue sponges doing well in home aquariums long term either. as far as cutting off the white part goes, that part is dead tissue, i suppose that it couldn't hurt. not to say that it is necessary though. i have a sponge in my tank, about eighteen months now, it has a small section that turned white after i moved my reef into our new house, it hasn't spread nor shrunk.

 

[Mishikal]

It used to be a dark blue sponge now it has turned to a light blue sponge.