Can anyone ID this pic?

[600k4]

Does anyone know what this white fuzzy stuff is? It is all over the bottom of my tank so i'm gonna vacuum it out this weekend. I dont have the proper lighting on the tank and I think that may be the cause. The hood that came with the tank that my LFS sold me (they knew i was using it for saltwater

) is for freshwater so I am going to buy current's orbit pc's asap.

 

[sufunk2]

Hard to tell bu they look like they may be q-tip sponges. Harmless filter feeders found in young tanks. Search the archives for hitchhikers and check the pics under sponges.

 

[600k4]

Thanks, sorry for the bad pic. It does look similar to the Q-tip sponge. Should I not worry then?