Sponge is a desireable animal for a reef tank as they represent great filter feeders. They can withstand wide temperature ranges ans are suspension feeders as well.
Sponge should never be lifted out of water and allowed to fill up with air, or you are looking at death as a result!
As for the species, I can't find one other than possibly Ulosa or Mycale species from Florida!
Websites on sponge aren't that good! _________ 125gal.w/Mag9.5 return(dual megaflow)>Mag7 pump Aqua Cev180skimmer.Wave2k Hamilton Reefstar(2)250watthqi(mh)pend.a Yellow, Naso Tang Red Lip Blenny Percula Clown Demoiselles Niger Trigger F. Wrasses Ceriantharia Orn.Shrimp and Stars Hermits Queen Conch asst. snails> Stars Zoos shrooms Montipora Brains Gorgonians Favia Turbinaria(large+small polyp) Acropora Xenia Tridacna (CroceaMaximaSquamosa) Leathers <35+75gal.reef tank as well> 
"IF THE PHONE DOESN'T RING...IT'S ME"  jb  |