Most sponges don't hurt corals. There are some that can.
Most fish won't eat sponges. Angels like them.
Do you have any pics?
Can you describe in more detail of how the sponges are
growing in regard to the corals, and how the corals are
responding?

Wayne Sallee
Wayne's Pets



RubenD wrote on 11/11/2006 9:04 PM:
I'm having a problem with sponges, little white spots growing everywhere in
my tank including among the corals.

How can I get rid of them? beside picking one by one off the rocks.

Thanks,

Ruben