Hitchhiker id please

[hankhill31]

Can someone tell me wat this is

 

[seand]

Do you mean the pineapple sponge? Bottom of rock

 

[Adam]

Looks like harmless pineapple sponges to me too. How long has the system been setup?

 

[dball711]

+1 I agree w/Adam on Pineapple sponge.

 

[hankhill31]

Looks like harmless pineapple sponges to me too. How long has the system been setup?

Since march about 7 months

 

[FutureInterest]

It's a good sign when sponges are growing in your tank

 

[boosting99]

pineapple sponges