Some kind of slug (or maybe nudibranch)

Alright thanks, I will take it out next time I spot it for sure. Will it be pretty easy to identify if it is in the process of eating the coral or does it do something weird like eat from the bottom up?

Thanks again,
Doratus

 

I don't know for sure, but they must spend quite a bit of time out of sight, otherwise the collectors and sellers would probably remove them. You could easily have more than one. The good news is that it is (or they are) probably feeding on only one species in your tank, and won't bother anything else.

Cheers,


Don

 

Hi,
Definitely a nudibranch from the looks of it. You will hardly see it during the day time. Check to see if you are able to spot it after lights out. Use a flashlight to check your corals after lights out. Check after about 2 to 3 hrs after lights out. If you see it on any corals then dispose off the nudibranch. They will also lay eggs of the same color resembling the corals that they prey on. Remove the eggs with a siphon pipe by loosening the egg string from the coral using a soft paint brush. Nudibranchs collect the nematocysts of the corals that they feed on.

 

...some, but not this particular species.

 

Alright, thanks for the info.

As of this morning I have pulled out two (2) of these little buggers. I pulled out what I believed to be an egg sack from the nudi as well. The egg sack was attached to a piece of star polyp coral. (not the same star polyp in the first pic)

Anyway, thanks again, you may have saved me some real heartache.

Doratus