New Algae in aquarium please help identify?

[82.sandeep]

I notice this growth in the aquarium and last time I scrapped it off but it seems to grow back again..it's very soft not sure if causing my corals harm

 

[Wiz]

Just looks like sponge. I doubt its harmful. Probably a filter feeder

 

[82.sandeep]

Is it good or bad? what can cause this to grow?

 

[Wiz]

The right conditions and chemistry. If it is sponge I would say its good. As long as its not stealing light or crowding the coral. My opinion only :-)

 

[82.sandeep]

thanks