sponge stuff

looks cool whatever it is! I had some wierd and wonderful things like that on my rock when i first started out

wow.... thats a great picture, so clear! to bad its spongest and not something cool... lol

great shot! sponges, nature's misunderstood filter.

i have that stuff all in my aquafuge, i was wondering what it was! no mysteries now!

is the stuff in your aquafuge linked together? i have something similar to it in my refugium but they are individuals and maybe sea squirts?