what is this?

[evad1]

hi guys,
what is this growing between my acros.
it looks like small brown xenia and it is spreading like wild fire.

thanks for your help in advance

dave

 

[tofucube]

Hard to see from pic but could be colonial hydroids.

 

[peter]

Looks like some kind of sps to me, maybe a monti. Yeah to hsrd to tell from pic

 

[BeanMachine]

I agree with Vu.

 

[Emac909]

Dave could it be encrusting xeina
Like this

 

[Emac909]

It's almost like blue clove polyps but larger polyps.

 

[Six2seven]

Better pic?

 

[evad1]

Hard to see from pic but could be colonial hydroids.

thanks vu
thats what they are.
no how do i get rid of them? kalk paste?

 

[Six2seven]

When I nuked my tank with fluke tabs for the clove problem I had. I noticed it also took care of the hydroids. But that would be last option.

 

[happaman]

Hard to see from pic but could be colonial hydroids.

+1 scrape them off or nuke them with a kalk paste. Unchecked they grow like mad and irritate coral ime.

 

[newtothis]

Does this look similar to yours? I'm curious to find out what it is too...

 

[tofucube]

thanks vu
thats what they are.
no how do i get rid of them? kalk paste?

Kalk paste is iffy because you have sps right next to it. You can try puttying over them with these suckers are resilient. They will still try to grow out if there is even a tiny area that is not covered. You can scrape them off but I think that will give them a chance to spread all over the place. One thing I worked for me in the past was that I picked the fasted growing monti and got a lot of superglue and slapped it smacked in the center of the hydroids and let the monti encrust over it. Your situation is a little tough because they are in between two sps.

 

[tofucube]

James, yours looks like some kind of clove polyps. Hard to tell from pic if it's fuzzy or baby polyps. Name that sucker and make it LE

 

[lowbudget]

Hydroids take the rock out and start clipping