ID these red stuff for me, are they Cyano bacteria?

[bananags]

i am setting up a bigger tank, and on my existing tank, i have a lot of these red/purple algea?? growing on the glass and rock as you can see in the pictures below

ID this for me and tell me how to reduce or get rid of it. i see them on a lot on other reef tank pictures before, but I also have seen set up without them at the fish store.

is this red slime/cyano bacteria?

this red calcium like deposite consume a lot of my time, cleaning, scraping the glass etc, can't imagine what i will do with the new tank 125gal (this tank is 29 gal, 1 yr old)

thanks, Anh

[Headless_donkey]

Tagging along for the answer. We have some of it as well. I think it is just another type of encrusting algae. It is much harder the cyano and can't be siphoned off the rock.

I have seen video of people diving in the ocean and the rocks have the exact same algae on them.

[chatfouz]

coraline algee. it usually is difficult to get rid of. scraping it will temperarly get rid of it. but if any of it seeds it will spread again. its not a bad thing at all. just asthetic

[GKarshens]

Definitely Coraline algae. Easy to get off glass with a scraper. If you don't like the look of it on your rocks I have heard that Urchins will eat it.

[bananags]

thank you everyone, i know what it is, then i can research some more to better understand them.

I'll look into the Urchin info.

as long as they are not red slime thing.