Please help id

[Saltygirl2012]

Could you please tell me what is on the rock to the right of the fish (brownish color). Also the red stuff on the rock in the second picture, it does flake off the top but then some is on the rock and won't. Thanks in advance for your help, it is truly appreciated!

 

[Saltygirl2012]

Please Help!!!!

 

[Petrichor]

Second picture looks like coraline, but I don't think it'd be easy to flake off.

Not sure about the first just looking at the picture, is there anything else you can tell us about it? Is it a bunch of little tubes with polyps? Might be colonial hydroids then.

 

[Saltygirl2012]

My husband said it is like a vine/root system it is being held on with. Flower looking but all brown in color not polyps, I don't think.

Yes the red stuff did flake off but, then there was some underneath that wouldn't flake off.