What is this???

jwoyshnar

Active member
Hello all. I have had my reef tank for a few months now and things are going good. Lately i have been seeing these little white pods appearing on my rocks. does anyone know what they are.
Thanks
whatisit.jpg
 
Harmless filter feeders called pineapple sponges. Their numbers will decrease as the tank matures.
 
Yep, most of the time no worries, but I've heard they consume silicates so if they really get abundant you may want to test for silica in the water. Otherwise harmless.
 
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