What is this ? found in my tank


New member
Can you get a pic of the starfish' front. I can't really tell what that white thing is from the pic.


New member
Sponge. Especially if it grows well in low lighted areas. My sump had them all over but none in the main display. Have 250/400W MH in main display.


New member
I have many that are the same type (form what I can tell). I barely notice them, unless the tank is very very tiny it is unlikely that anyone will ever even see them.