Id please

[Emarley]

Hello fellow reefers,

Could anyone id this growing on my live rock and is it good or bad.

Thanks in advance

Dom

 

[Ranjib]

My guess is macro algae of some sort. Let’s see what others say

 

[VSVP bet]

^ +1 on a macro algae. I am not an expert on specific species IDs for macro, but experience has shown it should turn into a kelp like algae. I have some growing in my fuge, in my display it doesnt grow, my tangs eat any macro that exists in my 125.

 

[LiveWire]

I agree with above that it is a Macro. Looks like Red Dictyota algae. I would get it out of the system. It will get out of control in time.

https://www.reef2reef.com/threads/red-dictyota.321676/

 

[Dragon52]

Also looks like you might have an aptasia anemone in the back, not good if that's what it is.

 

[acbaldwin]

Looks more like some sort of nemastoma sp. to me, but hard to tell with that pic.

 

[Subsea]

https://www.marineplantbook.com/marineplantbookredalgae.htm

Check out this link from Gulf Coast EcoSystem. If it is gelatinous and slippery, you have two options. You tell us what you got.

https://www.marineplantbook.com/marinebooknemastoma.htm

https://www.marineplantbook.com/marinebookhalymeniaelongata.htm

 

[sixty_reefer]

https://www.marineplantbook.com/marineplantbookredalgae.htm

Check out this link from Gulf Coast EcoSystem. If it is gelatinous and slippery, you have two options. You tell us what you got.

https://www.marineplantbook.com/marinebooknemastoma.htm

https://www.marineplantbook.com/marinebookhalymeniaelongata.htm

As above

 

[Emarley]

It’s looks identical to the one in the first picture

 

[Subsea]

It’s looks identical to the one in the first picture

I have found Halymenia from Gulf of Mexico are fragile & easily torn.

 

[acbaldwin]

If it's fairly stiff, while still being slippery, I'd still suggest nemostoma, and if so, consider selling it to a collector. It's one of the most sought after macroalgaes. I think you'd find plenty of folks looking to pay ~$30+ fast shipping for a frag plug size piece. I'd jump all over it if my tanks were mature enough.

 

[Emarley]

If it's fairly stiff, while still being slippery, I'd still suggest nemostoma, and if so, consider selling it to a collector. It's one of the most sought after macroalgaes. I think you'd find plenty of folks looking to pay ~$30+ fast shipping for a frag plug size piece. I'd jump all over it if my tanks were mature enough.

Got a better picture here, it is fairly stiff, got about six now growing on one piece of live rock, the biggest about an inch tall. Don’t know how to frag, I’m new to the hobby and still learning as much as possible.

 

[Emarley]

If it's fairly stiff, while still being slippery, I'd still suggest nemostoma, and if so, consider selling it to a collector. It's one of the most sought after macroalgaes. I think you'd find plenty of folks looking to pay ~$30+ fast shipping for a frag plug size piece. I'd jump all over it if my tanks were mature enough.

Got a better picture here, it is fairly stiff, got about six now growing on one piece of live rock, the biggest about an inch tall. Don’t know how to frag, I’m new to the hobby and still learning as much as possible.

 

[Subsea]

Got a better picture here, it is fairly stiff, got about six now growing on one piece of live rock, the biggest about an inch tall. Don’t know how to frag, I’m new to the hobby and still learning as much as possible.

Good stuff. While you may not know how to cultivate it, nature has had 4.5 billion years to work out details. Enjoy the ride.