[eadams]

this white thing has all of a sudden popped up on 2 of my corals....anyone know what it is??

 

[RookieMistake]

Pineapple sponge?

See figure 7
Identification and Husbandry of Aquarium Sponges by Ronald L. Shimek, Ph.D. - Reefkeeping.com

 

[eadams]

is that something i need to worry about?

 

[RookieMistake]

If that is what it is then no. They usually show up for a few months in newer systems then disappear. I have not seen them take over a coral though. You could just pick them off if they are interfering with coral growth

 

[MrBubblesJr.]

it's going to be tough to stop that gsp, thats some hardy stuff.

 

[eadams]

thanks for all responses