friend or foe?

[pweesng]

Hi guys,

I have notice recently, i have some red stuff growing on the live rocks in my tank...

The picture as attached.

I tried to feel it with my finger, it is hard and rough...

can anyone advise if it is any form of parasite? and whether ic an just let it be...

I do need to apologise for the quality of the picture, as it is taken by my handphone.

[albinosage]

Looks like red coraline, and since you mention it's hard, it's not slime algae.

[pweesng]

Looks like red coraline, and since you mention it's hard, it's not slime algae.

I suppose it is okay to leave them as it is?

I don't have any light... neither have i been dosing any calcium stuff though...

[LaW]

if its coraline, its friend.

but too much growing on walls, its annoying,

[pweesng]

Maybe the picture doesn't speak a thousand words...

The red part, although it feels like stones, the structure looks like those SPS kind...

I seriously doubt there are SPS.. can't be that lucky...

[yikai]

a crisp clear photo will enable a better ID. until then, can only speculate its coraline algae. they are calcerous algae and are hard, by nature.

[digibee]

I guessed is a foe.

[yikai]

I guessed is a foe.

why foe? its coraline algae..

[digibee]

why foe? its coraline algae..

from those pics, I can only guessed mah.

[Terryz_]

Should be coraline algae...

[Thexder]

Its coralline. Friend.

[pweesng]

ha ha... thanks friends!

i will leave them as it is, until such time i see them going out of control.

appreciate all your help!

[tribe172]

corraline! don't worry too much bro. hahaha.