Is this red slime algae?

[Taco]

It is thick and smooth deep red. Not slimy at all but can't tell.

 

[iDream]

Does it come off the rock easily? If so it might be.

 

[Taco]

If I use a tooth brush it does. But when I blow off the rock and do a water change it stays on. I'll prob just scrape it off.

 

[austinsdad]

Hard to tell. Looks purple in the pics. Red slime will blow off easily with a turkey baster. PS - get a new one dedicated to the tank. Works great for cleaning rocks during water changes.

 

[austinsdad]

Purple and hard is corralune algae. A good thing.

 

[Taco]

I have a turkey baster I use for feeding the anemones and blowing off the rock. It doesn't blow off though. I'll leave it be. Thanks!

 

[austinsdad]

So, yours is purple? Slime is a deep, dark red.

 

[Taco]

No it's deep dark red. Scrape it of then?

 

[Gti_Leo]

coralline algae comes in a deep dark red form too its just hard and hard and requires scraping, cyano or red slime algae is slimey and is easily removed from surfaces

 

[hackteck]

coralline started on my rocks in green, purple,pink , deep red