What kind of algae is this

[freewilly2]

Hello, can anyone tell me what kind of algae I have growing here. I did a water change on Sunday, checked my parameters last two days and been steady at the levels below. Tank has been running for 3 weeks but came with 50% of the water from fellow who solde the tank.

Sg: 1.024
Ph: 8.1
Ammonia: 0
Nitrate: 0
Nitrite: 0

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[Haunt]

I don't have a name for you, but what your seeing will most likely turn purple over time. (Coralline algae)

[mcgyvr]

Just normal green film algae.. Its absolutely a totally normal part of a new tank...
Expect diatoms, green film or hair algae and even some cyano..
Thats again TOTALLY normal part of a new tank process covered in any article about how to setup a tank.. (or should be if it isn't)..

As long as you keep working to keep nitrates and phosphates very low and just continue with proper tank maintenance (water changes/low nutrient levels) it will just pass..
We call it the "ugly stages" of a new tank.. brown/green/red yuck making the rock look ugly.. but it goes away.

again.. totally normal..

[mcgyvr]

Now.. Any new tank article should also stress that its not a good idea (even more so with a newbie) to be putting corals into a new tank...
The tank is just not "mature" enough to be a good stable environment for corals..
Stability is the key to successful reef keeping..

I suggest you slow down a bit and do a little learning on the basics of a saltwater tank before you get ahead of yourself..

[mcgyvr]

This site as a "decent" section that you should spend time reading.
If you can pay attention enough to get through all the blah blah/extra/disorganization,etc.. then its got TONS of valuable information that you will want to know..
http://www.reefcentral.com/forums/sh....php?t=1031074

[Haunt]

If it comes off the rocks easily it might be Green Film algae or even Cyanobacteria, but I don't think that's the case here.

https://www.reefcleaners.org/nuisance-algae-id-guide