There is a strong possiblility that it was exposed to air somewhere in the collection, shipping, wholsale, shipping, retail chain. Also it could just be starving, large sponges are notoriously hard to keep in home systems. Ok on pg 26 of J. Sprungs Inverts. book it has this sponge in red. It says comes in yellow, red, orange. From FL and the carribean. Filter feeder (duh) lol, dissolved organic matter, bacteria, Requires supplemental feeding of dissolved organic food to thrive. Hardiness in captivity Poor, life span months, years (with care) Book says Higginsia, and Ptilocaulis. I am just guessing of course not a biologist, and only going from photos. Steve