ID - Nudibranch?

[Blitzer]

Anyone know what this is and if I should remove? Hard to get a good photo, about 1-2 cm long

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[heathlindner25]

I would remove it, when in doubt.

 

[Blitzer]

Yeah it's in a cup now, but want to keep if beneficial

 

[AlSimmons]

You might want to do a search on Montipora-Eating Nudibranchs and Berghia Nudibranchs and see if anything looks familar. The latter is harmless, but these very rarely hitchhike their way into our aquariums. The former can be a downright scourge.

Here's a couple to get you started.

http://blog.captive-aquatics.com/captive_aquatics/2010/09/a-montipora-eating-nudibranch-primer.html

http://reefkeeping.com/issues/2004-01/ac/feature/index.php

 

[Blitzer]

I think it's a berghia, looks just like the one here: https://saltyunderground.com/category/berghia-qanda#lightbox/4/

 

[vakeros]

i would remove it of keep in qt untill you sure what it is . look like a nudi

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[Reeferz412]

It looks like a berghia, monti eating nudis are pretty small. If you did not intentionally purchase a berghia or are skeptical, I would remove it.