Mar 21, 2017 #1 N New hobbyist Aquarium Advice Apprentice Joined Feb 15, 2017 Messages 34 I noticed all these mushroom looking things popping up on my rock. I'm assuming they are good??!! They seem to be everywhere.
I noticed all these mushroom looking things popping up on my rock. I'm assuming they are good??!! They seem to be everywhere.
Mar 21, 2017 #2 bribo12 Aquarium Advice Addict Joined Sep 19, 2013 Messages 9,729 Location Maryland Looks like sponges to me. Harmless