What type algae

[USMA36]

Can anyone tell me what kind of algae this is? Some rocks are green some are more of a brown green. Tank has been up 3 months or so. I do t have a phosphate checker and my nitrates are typically between 5 and 10. The rock is from reef keepers. They mine it in Florida so I shouldn't be leaching.

 

[Brew12]

If you are referring to the light green stuff coating the rocks, that looks like coralline algae. It should turn purple after awhile.

 

[sternicus]

I had this problem two months back and it's green slime algae IMO. It looks just like what I had. I cut my light cycle down from 10 hours a day to 8, and started dosing Mg and it completely dissapeared day after day and is now gone 4-5 weeks later

 

[tom reilly]

I had this problem two months back and it's green slime algae IMO. It looks just like what I had. I cut my light cycle down from 10 hours a day to 8, and started dosing Mg and it completely dissapeared day after day and is now gone 4-5 weeks later

Does it blow off with a turkey boaster?

 

[Ty Hamatake]

Looks like a case of the 'new tank uglies' to me. Tanks usually go through phases of different algae growth before they stabilize. I'm betting it goes away on its own.

 

[USMA36]

O, doesn't blow off. Doesn't scrub off with a toothbrush to easy either.

 

[saltyfilmfolks]

Everything leaches a bit of something, but youd read most of it on a test unless your running aggressive gfo.
It may be time to add some more snails, but I dont think its anything to worry about. Probably the coralline precursor, but maybe not. All rocks get coated as they mature.
I actually get worried now when my rock starts to turn white.

 

[USMA36]

Thanks. Even running GFO and carbon since I started the tank.