Nov 24, 2012 #1 ron-salt-tank Aquarium Advice Apprentice Joined Jul 14, 2012 Messages 47 Location Abilene, TX Can anyone tell me what this hair looking stuff is growing out of and in my sand bed? Attachments image-399147589.jpg 115.8 KB · Views: 76 image-1157726891.jpg 107.7 KB · Views: 74