marymb1's picture

Fresh water sponge

Observed: 6th August 2010 By: marymb1
CIMG4649.JPG 1

The one in the photo is about 5" approx. They grew abundantly in my large healthy pond over last summer. I had never seen them in previous years. One photograph shows one growing on wool that I had been using as a 'spawning mop' for goldfish. Other picture shows them extending across an old fish box that I had collected from the beach.They ended up about 8" across, always adhering to inanimate objects.

  • freshwater sponge (Parazoa)
    Confidence: It might be this.
Species interactions

No interactions present.


marymb1's picture

fresh water sponge

Please will someone positively ID this organism as I have been asking locally and no one knows.