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Tidepool Tim says, “Warty sponge populations seem to ebb and flow every few years. I have always been able to find specimens in kelp beds and in rocky seaweed plains that drain dry at low water but that have a good overtstory of seaweeds to keep the sponge wet at low tide. This sponge has a real angular makeup and fractures into pieces easily. Bloodstars seem to graze on the sponge. The bright yellow color makes it easy to spot and a nice addition to any coldwater aquarium.”
