Rice looking things growing on rock

[splderboy]

anyone have an idea of what this is ?

 

[austin01]

Sounds like a small sponge.... or many of them. Check out
<a href="http://www.reefs.org/hhfaq/pages/main_pages/faq_rock3.htm" target="_blank">http://www.reefs.org/hhfaq/pages/main_pages/faq_rock3.htm</a>

 

[splderboy]

Thanks Austin, that's it but are they bad and will they take over should I take it out or leave it in im still knew too this so I really don't have a clue?

 

[splderboy]

I also have another sponge but don't know where too keep it in the light or out here is a link too it <a href="http://www.aquarium.net/1196/images/sponge1.jpg" target="_blank">http://www.aquarium.net/1196/images/sponge1.jpg</a>
if anyone know's weather I should keep it light or out please let me know thanks

 

[splderboy]