Red branching thing

[DRhodes]

This red branching thing is growing on a rock in my refugium. Is it macroalgae. It is about an inch tall from the rock. Do I need to supply any more info for an ID?

 

[DRhodes]

 

[WheatToast]

Probably Scinaia sp., Nemastoma sp., or Halymenia elongata. These are rare, gelatinous algae that are palatable to herbivores. Nice find!

 

[DRhodes]

Probably Scinaia sp., Nemastoma sp., or Halymenia elongata. These are rare, gelatinous algae that are palatable to herbivores. Nice find!

Thanks for the response. It looks very much like the Nemastoma. The link helps. I didn't know if it would be a problem in my tank. It seems to be growing better than my chaeto algae.

 

[WheatToast]

Thanks for the response. It looks very much like the Nemastoma. The link helps. I didn't know if it would be a problem in my tank. It seems to be growing better than my chaeto algae.

No problem! I just listed all three algae since it’s likely that they are all being confused with one another in the hobby (in particular, I think the elongated forms of Nemastoma might actually be a species of Scinaia like this).