Is this coraline Algae?

[anthony1222]

I’m noticing green splotches that looks like coraline algae but it isn’t pink or purple. It doesn’t scrape off easily and it seems to grow on the sump glass and back glass on display tank for now. If it’s coraline why is it green and not purple?

 

[EeyoreIsMySpiritAnimal]

Coralline comes in many colors.

 

[Lemons]

Yea looks like it, i have a rainbow of colours in my reef, the green ones are not the best looking... but i keep scraping the purple and pink stuff in attempts to spread it. It seems to be taking over now LOL

 

[Sophie"s mom]

Indeed it is!! a sign of a healthy tank for sure.

 

[anthony1222]

Indeed it is!! a sign of a healthy tank for sure.

How do I get red growing instead of green

 

[Sophie"s mom]

How do I get red growing instead of green

Sometimes it goes thru color stages, starts in white, the progresses to either red, purple, or pink. There are many types of coralline algae of course. Some are even three dimensional rather than flat.

 

[Idech]

How do I get red growing instead of green

As previous poster said, scratch the red coralline on the glass to make it spread. If you don’t have any, get some frags or snails with red coralline on them. Or even rubble.

 

[CasperOe]

Congratulations! You appear to have achieved a habitat able to sustain crustose algae

 

[Beachbilly]

What is this green color stuff coraline, it's beginning to spread on my pretty live rock.