Hhhheeeellllpppp

[zanski]

I've got a something growing on one of my rocks. It is black and looks hard seems to like shade because i turned the rock around and it has started growing toward the shade. have no pic sorry cant get a good pic to come out. any ideas?? :thinking:

 

[v-lioness]

Touch it, see if it is hard or soft......
Kaye

 

[zanski]

HARD!!! no color at all just black looks like the sole of a shoe. lol rubber!!!!

 

[integral9]

Does it look like this?

 

[zanski]

yeah but its solid no bubbles. I would have to get a razor blade to get it off... SOLID BLACK NO TRANSPARENCY WHAT-SO-EVER!! LOL

 

[firefish9]

Its probably coralline agea, you have not a thing to worry about.

 

[ophiura]

Might be a sponge.... :notsure:

 

[spartanph]

I'm curious to the answer as well. After seeing this pic I have noticed quite a bit of the same thing in my tank. Rocks that were bright purple have little patches of it. I think mainly on the shaded side of the rocks.

 

[kzoo]

Liver sponges look like that but they are a little soft.

 

[integral9]

Originally Posted by Zanski

yeah but its solid no bubbles. I would have to get a razor blade to get it off... SOLID BLACK NO TRANSPARENCY WHAT-SO-EVER!! LOL

THe pic I took was of some Black Algea. I don't know what could be what you are describing. Sorry. THe algea comes off the rock pretty easily, it's just a pain to keep reaching in and pulling rocks out to wash.

 

[zanski]

yeah i would have to get a razor blade to get this off the coral...

 

[lion_ish]

kinda looks like a leathery mushroom with some black stuff on it

 

[spartanph]

I took a closer look at this on my rock this weekend and it has developed lots of spikes. It is all over the place now. Could this be something bad?

 

[hardcrab67]

I can't get a good pic, but I have what I believe is a sponge growing on a piece of rubble. It is a black "blob' w/ a little "spout" on it. Have a yellow one also growing at the back side of my open brain, neither are in the shade though.

 

[beth]

I have had that all over my rock as well and assumed it was coraline. I would not worry about it being bad for you tank.