Aug 16, 2014 #1 Fieryfrog Well-Known Member View Badges Joined Mar 2, 2014 Messages 544 Reaction score 54 Location Minneapolis MN What state or country do you live in Minnesota Rating - 0% 0 0 0 I have this growing out of the sand in the corner of my tank. Any clue? Attachments 1408206563632.jpg 96.7 KB · Views: 127
Aug 16, 2014 #2 fishroomlady 2500 Club Member View Badges Excellence Award Joined Mar 3, 2013 Messages 2,628 Reaction score 106 Location Milford, OH Rating - 0% 0 0 0 it's worms I believe. not detrimental to the system, just looks unsightly
Aug 18, 2014 #3 tyler1503 2500 Club Member View Badges Excellence Award Article Contributor Reef Squad Emeritus Joined Apr 1, 2013 Messages 2,579 Reaction score 547 Location Bega, NSW, Australia Rating - 0% 0 0 0 +1 they look like tube worms. A sign of a mature aquarium. Harmless filter feeders
Aug 18, 2014 #4 WindeyD Active Member View Badges Joined Apr 30, 2014 Messages 473 Reaction score 120 Location GA Rating - 0% 0 0 0 I have em too; they help to keep water quality good and provide free food for critters