What is this, from Grenada

What is the reddish orange stuff in this shot? Grenada, Dec. 2016

http://www.cjcphoto.net/caribbean2015/images/151217-055652-75-43-d810.jpg

Still no guesses? Coral? Algae?

Hi phxacraig

I'd suggest it's algae - maybe pink bush algae (wrangelia pencillata) or Swiss Cheese Alga (hydroclathrus clathrus) - but pretty hard to say, for me at least!

I also think that it is algae.

Hi,
yes indeed algae.
The red ones are a wide spread typus, so not easy to find out which one special...
Possible are as well:
Halarachnion ligulatum
Halymenia floresii or https://www.meerwasser-lexikon.de/tiere/5658_Halymenia_durvillei.htm
Hypoglossum hypoglossoides

https://www.meerwasser-lexikon.de/kategorie/47.html
gives you an overview about algae in seawater tanks, you can see that its hard to id one....
Thats as well a problem of the www....
If someone tells you its this one, and a lot of people just copy it, its not wright, but often written ;-))

maybe pink bush algae (wrangelia pencillata) is for me to thin / fragile
Swiss Cheese Alga (hydroclathrus clathrus) is a brown algae, not that pointet leafs

Its realy hard, because a scientific descriebed one, can look very differnet if current, light or nutritions are different...
I have a book from Mr. Braune, he was director in an museeum in germany with 600 pages only algae....
And even this books is sometimes not helpfull.....
We have / had a lot of different species in our saltwater tanks, but its allways hard to find the one you have...

Regards,
Wolfgang

Hi,

yes indeed algae.

 

Regards,

Wolfgang

Thanks Wolfgang - at least I know it is a type of algae now. I couldn't even begin to find it online, plus I was looking at corals as well. I think it most looks like Halymenia floresii.