Growth on Rock ID

gmann1139

gmann1139

Active Member
I know this picture isn't good (none of them are) but this has been slowly growing on my LR.
Total dimension is less than a dime. It's pink, translucent, and growing out from a central location.
Its balloon like (rather than grass like), and I have no clue what it is.
Any opinions?
 
gmann1139

gmann1139

Active Member
Well, that's a split decision.
I have to do a water change tomorrow anyway, so I'm going to try and vacuum it up, though I doubt it will come as it appears to have structure. That should get the water level enough that I can take a 'top down' shot as well though.
 
uberlink

uberlink

Active Member
See if it will blow off with just a squirt of water from a powerhead or a turkey baster. If it will, then it's most likely cyano. Otherwise, it's likely sponge or, possibly, some kind of coralline algae growth. Cyano is a pain, but you can take care of it before it gets out of hand if you just limit your feeding and lighting.
 
gmann1139

gmann1139

Active Member
Ok, I'm going to try and get this IDed again. I tried to take more pics tonight. This is the best I got.
In the last five months, its grown from the diameter of a dime to the diameter of a golf ball.
Its got structure. I've watched hermits crawl across it, with no effect.
It appears to have stalks emanating from underneath the center. Its all one piece, like its growing from one center point. Its a translucent pink color (that does show up well in the picture).
Each individual 'stalk' is maybe the diameter of a toothpick. Some appear hollow, other appear to bulge at the end and be solid.
Its growing very slowly. I have no idea even how to classify it, so I'm looking for help (again).
 
gmann1139

gmann1139

Active Member
Nope. More tubular than spherical.
If you're thinking bubble algae, I actually had a couple green bubbles on the same rock that I took care of a couple months ago. This is structurally much different.
 
gmann1139

gmann1139

Active Member
Freak, I think you're on the right track. Haven't found a lot of photos to compare to, but nemastoma is a definite possibility.
 
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