Giant Ridge Sponge - Xestospongia Testudomaria Gravels Openings will vary and are

Openings will vary and are not suitable for precise hermit crab sizing

Sea sponge promotes natural burrowing behavior and provides essential moisture retention

and coloration

Quarter to Half an inch

Giant Ridge Sponge - Xestospongia Testudomaria Gravels Openings will vary and areThe Giant Ridge Sponge (Xestospongia testudomaria) is a premium marine aquarium specimen that combines striking aesthetics with functional filtration. This large barrel sponge features distinctive ridge formations and robust structure, making it an eye catching centerpiece for reef tanks. Perfect for established aquariums with moderate to strong water flow, the Giant Ridge Sponge actively filters water while enhancing biodiversity. Feed regularly with