Jun 3, 2018 #1 D dromo2189 Aquarium Advice Freak Joined Dec 1, 2016 Messages 250 Hello just notice this in my tank any idea why it is?
Jun 3, 2018 #2 bribo12 Aquarium Advice Addict Joined Sep 19, 2013 Messages 9,729 Location Maryland Harmless sponges
Jun 10, 2018 #3 melosu58 SW REEF 20+ YEARS Joined Oct 21, 2004 Messages 39,152 Location Virginia Harmless and good filter feeding sponges.