Jan 11, 2013 #1 Danielbdn Aquarium Advice Regular Joined Jul 14, 2012 Messages 86 Location Louisville, Kentucky I bout this rock with 4 mushrooms on it and now it has this dark gray thing growing on it with little bumps on it. Attachments image-112863343.jpg 123.1 KB · Views: 98 image-1452379302.jpg 150 KB · Views: 100
I bout this rock with 4 mushrooms on it and now it has this dark gray thing growing on it with little bumps on it.
Jan 11, 2013 #2 K kdpuffer Aquarium Advice Addict Joined May 8, 2011 Messages 2,360 Location Alberta canada Looks like its either a leather sprouting or its a sponge.