Is this brown hair algae?

[Duke x13]

I went on vacation for ten days, I had someone feed the tank while I was gone. I came back to an outbreak of algae. It's only on my rocks and seems to be messing with some coral.

 

[Subsea]

It’s a special gha. I think it’s Byopsis.

https://www.reefcleaners.org/nuisance-algae-id-guide
Bryopsis pennata and B. plumosa

“Some of the hardest to remove common species of macroalgae encountered in the hobby are B. pennataand B. plumosa. These two species have noticeable discernible midribs (center portion of the algae), that are wider than their branches. They also form a mat like root system on the rocks.”

“B. pennata (pictured on the left) has irregular and more sparse branching than its closely related cousin B. plumosa which has more symmetrical and fuller branching. (picture coming)There are many, many species of Green Hair Algae that have feathery branching, and are not necessarily members od the Bryopsis genus, nevermind B. pennata and B. plumosa. Simply because the hair algae in your system has branches does not mean it is one of these algae species.”

“The reason hobbyists despise finding this algae in their tank is because cleaner crews rarely finish it off when they snack on it. Sea hares, nudibranchs, urchins, emerald crabs, chitons, and even the larger Astrae tuber will nip at both of these species, but rarely consume it with any effectiveness.”

 

[Duke x13]

It’s a special gha. I think it’s Byopsis.

https://www.reefcleaners.org/nuisance-algae-id-guide
Bryopsis pennata and B. plumosa

“Some of the hardest to remove common species of macroalgae encountered in the hobby are B. pennataand B. plumosa. These two species have noticeable discernible midribs (center portion of the algae), that are wider than their branches. They also form a mat like root system on the rocks.”

“B. pennata (pictured on the left) has irregular and more sparse branching than its closely related cousin B. plumosa which has more symmetrical and fuller branching. (picture coming)There are many, many species of Green Hair Algae that have feathery branching, and are not necessarily members od the Bryopsis genus, nevermind B. pennata and B. plumosa. Simply because the hair algae in your system has branches does not mean it is one of these algae species.”

“The reason hobbyists despise finding this algae in their tank is because cleaner crews rarely finish it off when they snack on it. Sea hares, nudibranchs, urchins, emerald crabs, chitons, and even the larger Astrae tuber will nip at both of these species, but rarely consume it with any effectiveness.”

Ah shoot, thank you though. From what I've read my options are take each rock out and scrub or dose with Fluconazole. Is that accurate?

 

[Indiana Reefin]

I think that is Dino’s unfortunately. Definitely not bryopsis

 

[Duke x13]

I think that is Dino’s unfortunately. Definitely not bryopsis

So I did some research on the dinos, followed the steps. I did the peroxide test. It started bubbling so I assume that it is cyano. Which seems slightly better? Maybe? Haha