Some sponge pics from my refugium

[stealyourhouse]

I cleaned the glass of my refugium today, and thought I'd share some pics of the sponges that are covering most of the rock in there. Does anybody have any idea what type of sponge this might be?


You can see that the sponge is also growing along the back wall of the tank

Close up shot

 

[Leaky01ch]

No idea of the type of sponge, but I have some of the same looking stuff in my tank. Looks cool!