Yellow Sponge?

[ZombiePuffer]

My LFS told me this is a sponge but I just wanted to check with you all on this one also I noticed behind this sponge there is a weird thing almost reminds me of eggs and kind of the same color as the sponge is. Any ideas on what it is? There seems to be a lot of the yellow sponge things popping up all over the rock.

 

[d2mini]

Yup, great filter feeders. Enjoy them while they last.

 

[ZombiePuffer]

You say while they last..... do they die easy or something?

 

[d2mini]

Sponges are hard to keep long term due to inadequate food supply and too much light in our reef aquariums.

 

[ZombiePuffer]

Ah ok, Good to know that. I have my light on my tank for 10-11 hours then have my blue lights on for another hour then I go pitch black.