Crazy New Sponge Growth?

[dclaghorn]

ok... THIS is weird. I have never had sponges in my tank, and I have not exactly been good about my water changes for the last few months. All of a sudden, I have yellow sponges appearing everywherre in my tank! They are encrusting rocks like coralline algae. It's kind of cool looking, but am hoping this isn't a bad thing. Any thoughts? (Out of town for the next week, so I can't post pictures [not that I've ever been able to figure that bit out...])

Thanks,

Dave

 

[J.russell]

I have one rock in my tank and about 60% of the bottom of it is covered in yellow sponge.

 

[rebelehs]

something like this?

I have this stuff growing everywhere in my tank, I use a small rock with some on it and move it in different locations so as to cover the under sides of rocks in my tank. Think of it like coralline algae, it covers the top of the rocks and the sponge will cover the bottoms
Good for your tank, and some fish will eat it,

 

[dclaghorn]

Exactly like that. Well, I won't worry about it, and I'll try moving one of my rocks around. Thanks

BTW, how long have you had the cleaner wrasse?