rdnelson99
Aquarium Advice Addict
What in the world is this???? I will post a vid in a minute showing it rolling around.
Looks like some sort of sponge
FTMMWS said:Sponges are very good filter feeders..Its a good sign of a healthy system...Just not sure why its rolling around..They usually are stuck to rocks or the glass...(if thats what it even is???)
that thing appeared to be moving in the video. was it moving, or just blowing around in the current?