green spots popping up all over plastic and glass, is it corraline?

[Reef Puncher]

im 99.9% sure its corraline, i know its not cyano, too hard to be diatoms or normal algae, but i have these crusty hard greenish spots popping up all over my aquarium. i bought a bottle of purple corraline spores and poured it in several weeks ago, and i think thats what is popping up, but is it supposed to be green? they have been there for about 2 weeks now. all i have is a crappy pic. if it is corraline is it gonna change color? is this normal?

 

[Lavey29]

Coralline comes in many colors so green is possible. It typically shoes up on plastic parts first like powerheads long before rocks and glass.

 

[Reef Puncher]

Coralline comes in many colors so green is possible. It typically shoes up on plastic parts first like powerheads long before rocks and glass.

Oh it’s in my thermoger powerheads everything. But it’s green. And ugly. lol. Opposite of what I wanted.

 

[Reefing_addiction]

So my coralline gets green algae growth on it….fun stuff lol

Those spots could just be the beginning

 

[Lavey29]

Oh it’s in my thermoger powerheads everything. But it’s green. And ugly. lol. Opposite of what I wanted.

The purple eventually becomes the dominant strain in the tank.

 

[Formulator]

It looks more like your run of the mill film algae rather than coralline. When I do get the green varieties of coralline they tend to be more yellow-green than forest green. An easy way to tell is how it comes off when you scrape it. Film algae will kind of disintegrate into the tank while coralline is calciferous and hard so it comes off in chunks and is much more difficult to remove.

Edit: sorry I didn’t read your post thoroughly enough. Is it actually hard or just harder to remove than other film algae you have encountered? I get some green algae sometimes on my glass that is not coralline and appears in spots like that. Its just a different variety of film algae that is a pain to scrape off. When you do scrape it off it kind of stays together but its flexible and slimy looking chunks, not rocky chunks like coralline.

 

[Reef Puncher]

It looks more like your run of the mill film algae rather than coralline. When I do get the green varieties of coralline they tend to be more yellow-green than forest green. An easy way to tell is how it comes off when you scrape it. Film algae will kind of disintegrate into the tank while coralline is calciferous and hard so it comes off in chunks and is much more difficult to remove.

Edit: sorry I didn’t read your post thoroughly enough. Is it actually hard or just harder to remove than other film algae you have encountered? I get some green algae sometimes on my glass that is not coralline and appears in spots like that. Its just a different variety of film algae that is a pain to scrape off. When you do scrape it off it kind of stays together but its flexible and slimy looking chunks, not rocky chunks like coralline.

its REALLY crusty. its corraline. im just not sure if there is a like green species of corraline, or if purple turns purple after being green. someone above said there are different species and purple will take over eventually. if true, not sure how i got green corraline though. didnt even know that was a thing. must have hitched on something.

 

[Lavey29]

its REALLY crusty. its corraline. im just not sure if there is a like green species of corraline, or if purple turns purple after being green. someone above said there are different species and purple will take over eventually. if true, not sure how i got green corraline though. didnt even know that was a thing. must have hitched on something.

I have multi colors in my sump including green