Identify my algae?

[Sonatine]

My tank (32.5gal) has been running around 4-5 weeks now, and is starting to come alive. I'm trying to identify the algae I've got going on in there right now. I know I have some diatoms (on the sand, some on the rocks too), but I've also got some pink and green algae coating the rocks and I can't figure out if it's coralline or some type of cyanobacteria or something else. I've tried removing it with a brush or a turkey baster, and it does not come off the rocks like that. I also cannot scratch it off with a fingernail. My margarita snail seems able to remove it, but my LFS said that they might just be knocking the diatoms off and not eating them. The snail has not starved yet, so there must be something edible in there.

Tank was started with mostly dry rock, except for one live rock I bought at my LFS (that one grew the algae initially and then it spread to the other rocks over the last few weeks).

So, internet experts... What do I have?


Under white lights

Usual lighting (heavy on blues and purples, fairly low intensity)

Full tank under white light. It's definitely... something haha.

I don't feel too strongly about aggressively removing it at the moment. I've got another two margarita snails acclimating now to help control it.

 

[EeyoreIsMySpiritAnimal]

I've tried removing it with a brush or a turkey baster, and it does not come off the rocks like that. I also cannot scratch it off with a fingernail.

My first coralline algae on dry rock started as light neon green spots, so it's possible

 

[AydenLincoln]

Cyanobacteria and other algae sadly. I had this too and got too excited!

 

[Waters]

Yeah it is normal new tank algae.....way too early for coralline unfortunately.