Live rock algae id

[fulltang]

Wondering if I can get an ID on some of these, particularly the first one. It's green under white and doesn't look leafy like bryopsis but just want to be sure

 

[fulltang]

Also looking for an ID on this red stuff. It doesn't scrape off with a knife fwiw

 

[RedReefer]

Nice live rock! Where did you find that?

 

[fulltang]

Nice live rock! Where did you find that?

It was the Australian live rock recently sold by Unique Corals, they went out of stock pretty quickly. https://www.reef2reef.com/threads/australian-live-rock.895779/

 

[RedReefer]

I almost bought some of the same...

 

[WheatToast]

Green branches:
Some type of green macroalgae, though it’s hard to determine the specifics, since it does not seem very mature. Possibly Cladophoropsis (most confident about this one; it is a pest), Cladophora (not always considered a pest), the beginnings of Bryopsis (I am really not confident about this one though), a combination of these, or something else? @vetteguy53081 would probably know how to treat these.

Cladophoropsis:

Cladophora:

Bryopsis:

Brown tubes:
Colonial hydroids. I never had problems with these, though the consensus is that they are undesirable and should be treated:
https://www.reef2reef.com/threads/colonial-hydroids.441987/

Red crust:
Looks like some harmless/desirable red-encrusting macroalgae, such as Peyssonnelia, which is not Coralline algae (though it is often called Red coralline)

 

[fulltang]

Fantastic information. Yeah I've been looking really, really closely at those green hairs for leafy parts and I'm not seeing them, but I have a jewelers loupe coming in tomorrow.

Good to know about the hydroids, I started aquascaping with some of this rock but left that piece out. It's really cool and I'd like to magnetize it, would you recommend I rasp what I can of them off and superglue over what I can? That one rock is particularly bad with whatever that stuff is, so if you think it's risky then I'm willing to leave it out to dry, despite the cool structure.

Edit: based on what I'm reading about that algae I'm going to pull it out.

 

[fulltang]

Another photo of the questionable piece:

It's tough to tell if the other remaining pieces are affected, I'm leaning towards no? Might be wishful thinking.

 

[vetteguy53081]

Wondering if I can get an ID on some of these, particularly the first one. It's green under white and doesn't look leafy like bryopsis but just want to be sure

Looks like either Hypnea or Green Gracilaria

 

[vetteguy53081]

Another photo of the questionable piece:

It's tough to tell if the other remaining pieces are affected, I'm leaning towards no? Might be wishful thinking.

Hmmm, in this pic looks like macro called Chlorodesmis

 

[fulltang]

Hmmm, in this pic looks like macro called Chlorodesmis

Would you say it's safe to use, or too risky? I don't necessarily need it, but it would be nice.

 

[vetteguy53081]

Would you say it's safe to use, or too risky? I don't necessarily need it, but it would be nice.

its safe but does contain toxins to deter fish from eating it. Are they toxins that would affect the tank- No

 

[fulltang]

its safe but does contain toxins to deter fish from eating it. Are they toxins that would affect the tank- No

Understood. Thank you, I was pretty worried there! Do you agree that the brown tubes are hydroids? I can provide more photos if you'd like

 

[WheatToast]

Looks like either Hypnea or Green Gracilaria

Hmmm, in this pic looks like macro called Chlorodesmis

I could be wrong, but compared to the wiry structure of OP’s algae, Hypnea and Green Gracilaria have a more tubular structure, while Chlorodesmis grows in denser, finer, more vibrant tufts. Maybe we just need to wait for the algae to develop more to get a better ID.

Green Gracilaria tikvahiae (native to the Atlantic):

Hypnea pannosa variant without the popular blueish hue:

Chlorodesmis:

Good to know about the hydroids, I started aquascaping with some of this rock but left that piece out. It's really cool and I'd like to magnetize it, would you recommend I rasp what I can of them off and superglue over what I can? That one rock is particularly bad with whatever that stuff is, so if you think it's risky then I'm willing to leave it out to dry, despite the cool structure.

Edit: based on what I'm reading about that algae I'm going to pull it out.

Sorry, I am really not an expert on Cnidarian care/treatment. Superglue did not work when I tried it on Aiptasia, though.

 

[vetteguy53081]

Understood. Thank you, I was pretty worried there! Do you agree that the brown tubes are hydroids? I can provide more photos if you'd like

Not sure which brown tubes you are referring to

 

[fulltang]

Not sure which brown tubes you are referring to

These guys:

Upon closer inspection, I'm finding the green stems on all the rock, some are just individual sticks. Does that track more with Cladophoropsis? If so, is my best bet to rasp off every single little stick I can, hit it the spot with 35% peroxide, rodi rinse the spot and then superglue over it?

Here's a small patch on the big rock in my tank:

Tried to get some close-ups with my loupe: