Jul 28, 2013 #1 Steve190 Aquarium Advice Apprentice Joined Jun 27, 2013 Messages 31 Just noticed this on one of my rocks and have no clue what it is, any thoughts?
Jul 28, 2013 #2 Dyl1234 Aquarium Advice FINatic Joined Mar 31, 2013 Messages 789 It's weird looking lol, I am commenting so I can follow post.
Jul 28, 2013 #3 Greenstreet.1 Aquarium Advice FINatic Joined Nov 4, 2012 Messages 740 Location long island,NY Steve190 said: Just noticed this on one of my rocks and have no clue what it is, any thoughts? Click to expand... Can't remember the name but they are good for the tank they help to keep your water clean.
Steve190 said: Just noticed this on one of my rocks and have no clue what it is, any thoughts? Click to expand... Can't remember the name but they are good for the tank they help to keep your water clean.
Jul 28, 2013 #4 woody390 Aquarium Advice Addict Joined Oct 9, 2012 Messages 1,041 It's a pineapple sponge, harmless filter feeder
Jul 28, 2013 #5 carey Aquarium Advice Addict Joined Feb 23, 2011 Messages 20,966 Location Deltona, Florida Yep, pineapple sponges. And yep, they are perfectly safe.
Jul 28, 2013 #6 OP OP Steve190 Aquarium Advice Apprentice Joined Jun 27, 2013 Messages 31 Thanks for the replies