ID please

[GoReefin]

Can anyone ID this macro algae please. Guy has no clue what it is.

 

[Isopod80]

Caulerpa racemosa var. laetevirens​

 

[GoReefin]

Caulerpa racemosa var. laetevirens​

Worth keeping?

 

[GoReefin]

I have red pom pom and dragons breath already

 

[Isopod80]

Worth keeping?

It can spread pretty quickly if not trimmed often. Caulerpa in general seems to have a higher probability of going sexual in tank than alot of other macros. Up to you if you like it. You could always add it to the refugium if you have one.

 

[vetteguy53081]

Its not caulerpa but rather known as Acetabularia sp- trade name : Mermaid's Wineglass
Its not a bad coral or a nuisance But can annoy nearby coral. I recommend placing it in sump with light as it will lower nitrates

 

[GoReefin]

Thanks a bunch guys. Will add it to my sump and see how it goes. If it goes to crazy and out competes my other macros I'll trim it way back.

 

[Isopod80]

It can spread pretty quickly if not trimmed often. Caulerpa in general seems to have a higher probability of going sexual in tank than alot of other macros. Up to you if you like it.

Its not caulerpa but rather known as Acetabularia sp- trade name : Mermaid's Wineglass
Its not a bad coral or a nuisance But can annoy nearby coral. I recommend placing it in sump with light as it will lower nitrates

It's not mermaids wine glass. Completely different growth pattern. It's var. Laetevirens.

 

[GoReefin]

That looks like it's the one. Here is another pic.

 

[vetteguy53081]

It's not mermaids wine glass. Completely different growth pattern. It's var. Laetevirens.

You have pictured one of 23 common variety of mermaids Cup (better known as) . I personally have had these in various tanks over the last three decades.

Heres another version:

 

[Isopod80]

You have pictured one of 23 common variety of mermaids Cup (better known as) . I personally have had these in various tanks over the last three decades.

Heres another version:

Notice how the stalks of mermaids wine glass don't branch? These do.

 

[vetteguy53081]

Notice how the stalks of mermaids wine glass don't branch? These do.

Looks at mermaids cup. Many varieties.
bikinensis is another version

 

[vetteguy53081]

That looks like it's the one. Here is another pic.

Seeing this in your hand, it can be bikinensis algae

 

[Isopod80]

Looks at mermaids cup. Many varieties.
bikinensis is another version

Same with caulerpa. Along with many known variants like the one I listed. Look up C. racemosa var. Laetevirens.

 

[Isopod80]

That looks like it's the one. Here is another pic.

Yup, that's it. The photo I posted was from a marine science journal with the i.d. I listed.

 

[WheatToast]

Caulerpa racemosa var. laetevirens​

Looks like Caulerpa chemnitzia (once Caulerpa peltata) to me.

Looks at mermaids cup. Many varieties.
bikinensis is another version

I agree with @Isopod80 that this is not Mermaid’s cup (Acetabularia). Said algae has no substantial rhizome, while OP’s algae does (Caulerpa has a substantial rhizome). The caps of Mermaid’s cup also feature lines radiating out from their centers. The caps of OP’s Caulerpa do not.

 

[WheatToast]

Here’s my Caulerpa chemnitzia (sold as Caulerpa peltata which has been synonymized with the former):

 

[Isopod80]

Looks at mermaids cup. Many varieties.
bikinensis is another version

bikinensis is in the Caulerpa genus not Acetabularia.