fresh water sponge

fresh water sponge

Observation - fresh water sponge - UK and Ireland. Description: 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 pictur

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.