Reddish Maroon Algae Killing Zoanthids??

[dedecv3]

I've got a reddish maroon algae that has been attacking some of my zoanthids and killing them. It is smooth and slimy and not easy to scrape. Any ideas on what it is and how to eliminate it??

 

[romsoccer12]

cyano

 

[elmafioso52988]

Just blow the algae off with a turkey blaster.

 

[dedecv3]

Just blow the algae off with a turkey blaster.

It does not come with scraping so a turkey blaster isnt gonna do it either. I have some on my rocks too and I cant scrape it off that either. It is attached strongly.

 

[650-IS350]

Picture of the algae in question

 

[PensFan05]

+1 to cyano. Except it should blow off with a turkey baster if it is. Pics might help.

 

[dedecv3]

Here are two pictures I just took. The zoanthids that it has completely taken over I have in my sump out of the light in hopes that will knock it back some. Any ideas or suggestions on how to eliminate this would be appreciated.

 

[Scott-CapeCoral]

lol, looks like your basic red coraline. Why do you think it's killing your zoas or those purple deaths ?

 

[Friday Night]

By the looks of it the PD plug looks fine bud.. any pics of the "dying" zoas?

 

[PensFan05]

Yeah, looks like red coraline algae to me also! Most complain about coraline taking to long to spread in their tanks.

 

[dedecv3]

This one has been in the dark for 3 days so a good amount of the red is gone. The entire zoanthid was completely covered with the dark red algae. My tank is about 6 months old and has quite a bit of purple coraline but i've been getting this reddish algae lately and everytime it gets near one of my zoanthid colonies it kills it. I have about 30 different colonies/frags and it's killed 2 and is working on this one as well as one other at the moment.

 

[dedecv3]

By the looks of it the PD plug looks fine bud.. any pics of the "dying" zoas?

The purple Deaths are fine at the moment but the algae jus appeared a few days ago and isnt actually touching the colony yet.

 

[dedecv3]

Here is another frag that is covered and was fully open just a few days ago. Have had this frag for 4 months with no issues.

 

[Friday Night]

Sweet mary... btw whats your water chem stats?

 

[dedecv3]

Salinity 1.025
Ammonia 0
nitrite 0
Nitrate 10-20
Temp 78-79
PH 8.4
Calcium 420-440
Phosphates Trace or less
KH 8-9 drops

 

[jjmcat]

Are you able to siphon the algae off or is it hard?

 

[dedecv3]

Are you able to siphon the algae off or is it hard?

It's hard. Tried scraping with my finger nail and a blade with little success.

 

[Scott-CapeCoral]

Hard on the polyp skin too? or hard on the rocks and plugs?

 

[Scott-CapeCoral]

Coraline shouldn't disapear when starving it of light, it would just die and turn white, that isn't happening?

 

[dedecv3]

Hard on the polyp skin too? or hard on the rocks and plugs?

IDK about the actual polyp. I'll have to check. It appears to be the same color/texture though.

Coraline shouldn't disapear when starving it of light, it would just die and turn white, that isn't happening?

It doesnt seem to disappear, just lighten in color.