I’d please

[Jayson Ledbetter]

this makes the second one of these if pulled out in the last couple weeks. I know it’s a nudibranch , but good or bad?

 

[dbraun15]

Generally, nudibranchs aren't good in our aquariums. They tend to look like the coral/invert that they consume as camouflage. I'd keep an eye on the area you found them.

 

[Jayson Ledbetter]

It was on the upper glass

 

[saltyfilmfolks]

I'm going with possibly monti eating nudi.

Zoa eaters have frills down thier backs, montis all to the sides.

It's possible it's a harmless species , but those usually die of in out tanks as they don't find the food they need.

Start looking for coral bites.