Can you tell if this is coralline?

[Mmfarm]

The algae is bright green and not easy to remove. My SG is 1.28. Snails and blue leg hermits don't seem to remove it.
Thanks

 

[GimpyFin]

looks like maybe hair algae starting. Corraline looks more like round disc shaped spots that vary in size. They can be red/puprle and green.

 

[cloak]

Being that it's hard to remove Coralline algae is definitely a possibility. This does come in all kinds of colors.

Your SG is a little high btw. 1.025, 1.026 is usually recommended.

http://www.reefkeeping.com/issues/2004-05/rhf/index.htm

 

[Mmfarm]

Any definitive way to know for sure? Will bring my SG down a bit. Thanks.

 

[cloak]

The fingernail test? Not coming off with ease is usually a sure fire sign.

 

[Mmfarm]

Thanks. Not coming off - call it coralline.

 

[brianr24]

I would definitely say corraline.

 

[sean81]

looks a bit like green cyno

 

[Dogshowgrl]

New rocked getting color. Not coralline just yet but is part of the maturity of a tank. But the dock doesn't come clean easily BC of how porous it is. It looks good just one step closer try o that desired mature tank, but I would say not coralline. It does come in green but didn't cover like that.