View Full Version : Can anyone help to identify this please?

06/02/2014, 01:05 AM
Hi all,

I have had my tank running for about a year or so now and it appears well balanced with good parameters.

I have in the past had outbreaks of aiptasia but these are now quite rare with the occasional appearances :-)

This has made me quite weary of strange appearances though. I have two areas of rock that have small colonies of the attached appear...

Can anyone please tell me what this might be? It does seem to be keeping itself localised but I wanted to check that it is not problematic.

Any help would be appreciated...

Many thanks,


06/02/2014, 02:55 PM
They look like hydroids to me. :thumbdown

06/02/2014, 07:48 PM
+1 on Hydroids

06/03/2014, 12:36 AM
Thanks a lot for the fast replies.
Before now I had never heard of Hydroids!
From what I have just read, it would be a good idea to eradicate these asap, right?
If so, do Peps do the job well, or am I looking at a chemical solution?