What's this growing on LR?

Jaffy

New member
Sponges buddy! A sign of good water so far, harmless, stay small. Filter feeders, don't do much of anything. Some grow larger then others.
 

Dmorty217

Saltwater Addict
They are called pineapple sponge, caused from excess silica in the sand/tank they should appear everywhere until the silica level lowers then you will see only a few
 
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