What is this?

[Devils153]

I have this on two frag plugs that have been in my tank for 7 months. When I touch it it does not move or disintegrate. It almost seems to me to be red coralline. Anyone have an idea. Does not seem to bother the zoa and picture was taken at night after I touched it with a glove on.

 

[Ron Reefman]

I'm curious as well, since I don't know what it is.

Lets try for some extra help. #reefsquad

 

[SPR1968]

It looks like red coralline algae to me, unless you could get a clearer picture

 

[Retro Reefer]

A better picture under white lights would be helpful.. Is it hard or soft?

 

[Devils153]

It looks like red coralline algae to me, unless you could get a clearer picture

Okay I will see if I can grab one with the lights on.

 

[Devils153]

A better picture under white lights would be helpful.. Is it hard or soft?

I will try to get a better picture just noticed it last night. It is hard.

 

[Retro Reefer]

I will try to get a better picture just noticed it last night. It is hard.

like was mentioned probably just red coralline algae.

 

[Devils153]

Okay this is about as good as I can get them.