Coralline algae

[fishmaster818]

Is dark red coralline algae bad

 

[Eienna]

Depends on who you ask.
In and of itself, it is not harmful.
It can, however, use up a lot of the magnesium, alk, and calcium your corals need if you have a lot of it, resulting in more of a need to dose. It's the same as any other coralline.
You do need to make sure it's not red slime you actually have, though. If it's hard like a hard coral skin, you're good. Thick and slimy, well...

 

[mike007]

Depends on who you ask.
In and of itself, it is not harmful.
It can, however, use up a lot of the magnesium, alk, and calcium your corals need if you have a lot of it, resulting in more of a need to dose. It's the same as any other coralline.
You do need to make sure it's not red slime you actually have, though. If it's hard like a hard coral skin, you're good. Thick and slimy, well...

+1 coralline algae is very benefical and you can't stop it from growing in a healthy tank.

 

[fishmaster818]

So that dark red isn't bad

 

[mike007]

As long as it is hard not slimey it is good algae.

 

[Reefing Madness]

As long as it is hard not slimey it is good algae.

Agreed. Ive got the red coralline in my tank also. That type stays on my rocks.

 

[fishmaster818]

What kind of coral is this

 

[Reefing Madness]

Looks like the beginings of Star Polyps.